Coolant Leaking problems of the 2007 Honda Civic - part 1

47 problems related to coolant leaking have been reported for the 2007 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Honda Civic based on all problems reported for the 2007 Civic.

1 Coolant Leaking problem

Failure Date: 01/31/2021

Engine is overheating because there is a crack in the back of the engine block causing coolant to leak. The vehicle was moving on a city street.

2 Coolant Leaking problem

Failure Date: 08/15/2020

Engine block cracked at 99,000 miles. Coolant leaking.

3 Coolant Leaking problem

Failure Date: 06/12/2020

Coolant leak behind O2 sensor in the block of r18. Vehicle only has 122,000 miles super low mileage and believed to have a leaking head gasket.

4 Coolant Leaking problem

Failure Date: 05/10/2020

My aunt, purchased this car in 2007. She died in 2015 and our mother purchased the car from the estate. After the purchase we saw the re-call and 10 year extended warrantee on the car because of "engine block cracking". We took the car to a dealer who said that since there was no coolant leaking, there was no crack in the block and he could not fix a car that was not in need of repair. The care had 70,000 miles on it at the time. My mom died this February and we again purchased the car from the estate. It had 75,000 miles on it. Last week, the engine block started leaking and it was diagnosed with an engine block crack, and that there was nothing we could do about it because it had exceeded the 10 year warrantee, even though the car only had 79,000 miles on it. Honda should have made a 10 year and 100,000 mile extension. We were penalized because we are low mileage drivers. This is very unfair and should consider a class action law suite. Any advice or guidance would be greatly appreciated. Thank you, donald whitcomb, 1728 old generals hwy, annapolis, MD 21401, 443-336-2546.

5 Coolant Leaking problem

Failure Date: 02/21/2020

The cars coolant and oil kept mixing and the coolant would quickly deplete and leak out of the bottom of the car, the engine would also heat to the maximum temp on the engine if I did not constantly fill my coolant. I went to discount tire to get this checked out and it was a cracked engine block, I found out there were recalls for this exact year and issue but my VIN was not included for some reason! I fear one day my car will blow up on me and Honda should correct this problem free of charge.

6 Coolant Leaking problem

Failure Date: 12/11/2019

The vehicle has developed a coolant leak due to a cracked engine block. This vehicle can no longer be driven and while it is in otherwise excellent condition, repairs are economically unfeasible. This is a 2007 Honda Civic ex with the r18 engine. It has a clean title and I am the first and only owner. There have been a significant number of similar failures in the 2007, 2008 and 2009 model year Honda Civics with this engine due to bad metallurgy and weak casting during the manufacturing process. Honda knows that these are defective engines as they created technical service bulletin 10-048 in response to these failures. They did not however issue a recall. I believe this is a safety issue, because this failure could occur in highway driving causing the engine to overheat and seize and the driver could therefore potentially be unable to leave the active traffic lanes. Regardless, even if the driver could make it to the shoulder, that is not a safe environment. I noticed this problem when the vehicle was in motion just after exiting the highway. There are many examples of similar failures on various owner group websites.

7 Coolant Leaking problem

Failure Date: 10/23/2019

As many of the other people, I have a leaking coolant crack in the engine block due to poor casting, thus resulting in the car to dangerously overheat. I have visited a local mechanic and they have confirmed it is a faulty problem among many Civics manufactured that generation. The problem others and I encounter is the fact that the car exceeds the 10 year warranty. To make the dilema worse, the Honda manufacturing company does guarantee full recompensation. They suggest for one to go in for $100 + inspection that does not completely guarantee aid. The problems I encounter include: an ongoing leak of dangerous coolant liquids while driving/parked, excessive overheating of the engine while driving, and the tear down of parts(coils, cylinders, and spark plugs) due to unstable/worrisome high temperatures. I have overlooked many forums and threads of unhappy Honda drivers that are encountering the same problem as I have. The number of complaints found here have increased significantly in recent days. I plead/beg for your assistance! many of the people encountering this problem are of low income, few of which cannot afford repair costs and/or purchasing a new vehicle; we purchase these type of cars for their so-called reliability. In my case, I am a university student who vitally needs a source of transportation. One may argue that public transportation is the solution, but that limits my possibility frontier as I also have to work; public transportation costs time one could be using elsewhere. Truth of the matter is that this defect is potentially dangerous to the public. There is high correlation between engine overheating and accidents that are worrisome.

8 Coolant Leaking problem

Failure Date: 10/15/2019

I was driving on a highway and I noticed coolant leakage resulting in engine overheating.

9 Coolant Leaking problem

Failure Date: 06/27/2019

Engine block cracked and leaking coolant.

10 Coolant Leaking problem

Failure Date: 01/18/2019

Engine block cracked and leaked out coolant . Repair costs are more than the car is worth . Honda warranty was for 10 years because this was a common problem our car is 11 years old.

11 Coolant Leaking problem

Failure Date: 11/25/2018

The vehicle unpredictably leaked coolant and the engine block is now cracked. The car is useless. Had to tow it 100 miles only to be told by Honda that this is my problem. It is now out of the 10 year extended warranty even though it has less than 100,000 miles on the car. This is a know problem with this make and model which is why Honda extended the warranty. It should have been an outright recall - they will not do anything about it despite their faulty manufacturing.

12 Coolant Leaking problem

Failure Date: 11/14/2018

At 110,000 miles, my car developed a cracked engine block. I was parked and noticed coolant leaking from my car. My car was towed by aaa to keyes Honda and diagnosed. It was found that Honda was aware of this major defect and did not inform consumers. Instead, they quietly extended the warranty by one year instead of issuing a recall. After much research, it was found that this is a known issue. The repair cost is $5-6000. American Honda will only pay a very small portion, leaving the bulk of the cost to the consumer.

13 Coolant Leaking problem

Failure Date: 11/12/2018

The engine is cracked in the back and leaking coolant. Car only has 80,000 miles on it.

14 Coolant Leaking problem

Failure Date: 11/01/2018

2007 Honda Civic engine block cracked, leaking coolant - Honda related to TSB 08-044.

15 Coolant Leaking problem

Failure Date: 10/26/2018

Engine block crack, coolant leaking.

16 Coolant Leaking problem

Failure Date: 10/03/2018

Cracked block and leaking coolant--vehicle overheating. Manufacturing defect. Logged a case with Honda of north America.

17 Coolant Leaking problem

Failure Date: 08/01/2018

Coolant leaking as described by TSB 10-048 because of defective engine block that cracked, part number 10002-rna-a00. Honda dealer in dublin, ohio said Honda corporation would only pay 25% of cost to repair since the warranty expired approximately 1 year ago.

18 Coolant Leaking problem

Failure Date: 07/27/2018

Cracked engine block. My car only has 127k miles on it and out of no where I had coolant leaking and my car almost over heated because of it while I was on the freeway. Ii had a mechanic look at it and that's how we figured out the engine was cracked. Not once did I get a call or letter from Honda informing me that my car had a recall because of this known issue. When I called Honda to see if they will in good faith fix my car they told me that it would need to get diagnosised by a Honda dealer and maybe they can do a shared cost but it is not guaranteed. Not only can they not guarantee that they will fix it but they wanted me to continue to drive my car to a dealer? how is that safe to do? us conusmers should not have to pay for a defected car that they built! my Honda should still have more life to it and not died out on me so early. This should have been a safety recall and not just s regular one.

19 Coolant Leaking problem

Failure Date: 07/17/2018

Another cracked engine block (r18a1 sohc 1. 8l 4-cylinder I-vtec engine) Honda Civic ex with 103,000 miles. Serviced regularly with Honda fluids and otherwise well taken care of. Block crack and coolant leakage occurred driving in urban traffic at 40 mph and resulted in a moderate rise in engine temperature in ten minutes when the temperature gauge was at "h". Subsequently the engine has had a steady drip of coolant running down the side of the engine block even though the engine has not been started.

20 Coolant Leaking problem

Failure Date: 06/05/2018

I bought the car in 2016 with 95,000 miles from the original owner. I preformed maintenance as required and have never had any issues. The car had been working perfectly up until June 5, 2018. I was driving to work and noticed my car began to show signs of over heating so I pulled over. I let my car cool down before checking it. Everything checked out but the coolant. I had no idea what was wrong so I drove the car to the closest auto shop I knew of. My car drove well there but I had to pull over to add water. My mechanic informed there was a crack in the engine and coolant was leaking out. I asked if this had been a cause of something I hadn't maintained or checked. He mentioned that this had been a problem he's seen with Honda�s. It was a very small maybe hairline fracture which had cause my coolant to leak and my car to overheat. I went home and googled my issue. Consumers reports had an article describing the issue with 2006-2009 Honda's which were cracking and leaking coolant. I found a number and contacted Honda but they informed me that I am over the warranty limit. I am still waiting on a final response. I use my car for work so it isn't heavily used. I know I'm within the range of many who've had issues with this car. It would have taken more than 10 years to add the miles that would be needed for the engine to start to fail. I understand that I am out of warranty for Honda but I wish they'd consider my case. This isn't a cause of mine but a manufactures issue which shouldn't void my warranty. If the car has a faulty item that faulty item will become defective. In this case the engine which cracked at no fault of mine.

21 Coolant Leaking problem

Failure Date: 05/07/2018

Hope you are well. I am a proud owner of a 2007 Civic lx coupe 1. 8l 4 cylinder that I have owned and loved since 9/28/09. It's my daily driver and often times my lifeline. While driving out of my neighborhood two days ago I noticed my temperature gauge was rising quite quickly. I pulled over to check my fluids (as I just changed my oil and topped off my fluids on 2/14/18) and noticed I was very low on coolant. My vehicle was operating normally the night before. My first thought was a coolant leak so I took my vehicle to weir canyon Honda in anaheim hills for a diagnosis. The mechanic looked at my oil and immediately determined there was coolant in my engine and significant build up. I was notified that there was a TSB #10-048 and #sb-08-044 for my vehicle. I was told that since I am 5 months passed my 10 year warranty, there is nothing they can do for me. My issue is, how was I supposed to know about this? why didn't Honda send me a notice about this extreme issue? as per the requirements, my vehicle needed to malfunction within 7 years for the warranty to be in effect, to only be extended to 10 years due to complaints from loyal customers. And you also needed to have the problem, pay for it, then fight for reimbursement. I am at my whits end of what to do at this point. And to whoever reads this, I am in no way angry at you personally at all. I know kindness is hard to come by these days. I just know that this kind of problem I have usually only get addressed in good faith and I am hoping you can help me out. I deliver food for a living and right now, I am completely unable to work so I'm stressed out. Thank you for your time. Here is a link to many of the problems I experience. . Read more...

22 Coolant Leaking problem

Failure Date: 03/04/2018

Yes hello I have a 2007 Honda Civic ex and I would like to file a complaint. Ok so I was on my was home with my wife on the highway and my car started smoking from under the hood I nearly lost control of my vehicle but thankfully manage to pull over I looked for the problem but I didn't find why. So it cools down and I add coolant in the reserve and the raidiator to be able to make it home. So when I arrived andturned my car off I was able to here the water on the hot motor so I looked for where the problem was come to find out that my car had a crack going across the block of the engine. And that's where it leaks all the coolant out from. That is really unsafe I have never seen anything like it. Probably made a bad decision in Honda! I want to know if I could be helped? I nearly lost control of my vehicle with the smoke coming out from under the hood.

23 Coolant Leaking problem

Failure Date: 03/01/2018

Cracked engine block, leaking engine coolant and overheating.

24 Coolant Leaking problem

Failure Date: 02/01/2018

To whom this may concern, I am the sole owner of a 2007 Honda Civic with 57,576 miles on the odometer and I would like to file a formal claim against american Honda motor company for not extending the 10 year warranty on the engine block due to an engineering/manufacturing defect during the production of the vehicle. On 2/1/18 my car was diagnosed by a Honda certified technician, who determined that my engine block was leaking coolant due to a crack between cylinders 1 & 2 on the outside of the block. The technician explained to me that Honda issued an extended warranty on the block to cover this issue but my warranty had expired by 3 months and therefore Honda would not cover it. So, I decided to file a formal claim with Honda and after going back and forth for a week and a half they agreed to pay 50% of the cost to replace the engine block, which meant that I was responsible to pay $2,658. 75 to make up the difference. I feel that Honda should have covered the engine block replacement 100% free of charge due to the fact that the issue was due to a manufactures defect. Also, the car is in excellent condition, has low miles, and has been maintained at the dealership that it was purchased at. As a customer, who purchased the vehicle new, I feel that I should not have to invest money on replacing the motor due to a defect. The customer should only be responsible for routine maintenance . I have attached my repair bill which lists the issue/fix and the amount I was charged as proof. Thank you and I hope this helps others!.

25 Coolant Leaking problem

Failure Date: 01/26/2018

I've had mu Civic 11 years and driven the car 167,000 miles trouble free. On Jan 26, 2018 I detected a sudden coolant leak with engine overheating and steam coming from under the hood while driving. I took it in for service and was shocked when I was told I had a cracked engine block. I was further informed Honda had identified the defect and extended a warranty for it. However, I was one year beyond the warranty period. It doesn't seem fair to me. The repair cost would have been excessive so I wound up selling the car for its parts value. I'm a big Honda supporter. , I've had 6 of them, but this left a bad taste. I still think Honda should do something for those of us who have had this problem. I wound up replacing it with a Subaru.

26 Coolant Leaking problem

Failure Date: 12/27/2017

Engine block cracks and leaking coolant. Our 2007 Honda Civic started leaking fluid on 12/27/2017. This cause temperature to become red with white smoke coming out of the front hood while I was driving with my wife and 3 month baby. It looks very dangerous to drive. We found out Honda had extended the warranty on this to 10 years because of known defects. Unfortunately, I experienced the defect 14 months after my Civic's 10 year warranty period. Honda corporate and our local Honda dealerships are not willing to honor and fix this defect. The want to charge $5,000 to fix it. This should be a recall as so many people are experiencing this. A car should not be considered unsafe to drive at 11 years old and require $5,000 repair, and pose a risk of endangering a family with a newborn safety.

27 Coolant Leaking problem

Failure Date: 12/25/2017

I have a 2007 Honda Civic ex coupe with only 99k miles and due to a manufacturing defect now has a cracked engine block. Honda has a service bulletin #10-048 which states the 2007 Civic and other years have manufacturing defect. My Civic started over heating on Dec. 25th 2017 on the way out to my families house for christmas and I had to pull to the side of the road due to the overheating and smoke we saw coming from the engine. After looking under the hood I saw there was no coolant in the reservoir and I couldn't detect a coolant leak. The next day Dec. 26th 2017 I replaced the thermostat on my Civic presuming that the thermostat was sticking and coolant was not circulating. That was obviously not the case because yet again the next day Dec. 27th 2017 it overheated and I had to pull to the side of the road and noticed a severe coolant leak coming from the engine block. When I got the car home I did some research and noticed a Honda service bulletin (above) and saw we were not the only ones having this issue. We called american Honda and they started a case for us and recommended that we take it to our local Honda to be inspected further. We made a appointment for the inspection and after Honda inspected it they diagnosed it with a cracked engine block. This is do to their faulty defected product. Honda should stand behind their product and fix the issue. This car was meticulously maintained by my local Honda and has been in the family. We were never notified of this bulletin or else we would had brought our Civic in sooner before there supposed extra 10 year warranty expired. It shouldn't matter how many years Honda knows this is a ongoing issue and it will continue to happen if it doesn't get taken care of the right way. This could potentially be a dangerous situation and I believe Honda needs to step up.

28 Coolant Leaking problem

Failure Date: 11/04/2017

The 2007 Honda Civic as a known problem of cracks in engine block. Over time, the crack causes coolant leakage, and will render the vehicle completely inoperative. Our 2007 has 77,000 miles, and the engine completely shut down while my daughter was driving on a busy city street. Smoke was deteted; next minute the car would not move. Honda knows about the problem, but is doing all it can to avoid a recall. There is no preventive maintenance that could be done to prevent this known mfg defect.

29 Coolant Leaking problem

Failure Date: 09/18/2017

The contact owns a 2007 Honda Civic. While the vehicle was operated at low speeds, it experienced a loss of power and black smoke appeared from the engine compartment. The vehicle was pushed to the side of the road. The contact did not see flames; however, a coolant leak was observed. The vehicle was towed to an independent mechanic where it was diagnosed that the engine block was defective and needed to be replaced. Checkered flag Honda (6541 e virginia beach blvd, norfolk, va) stated that the failure was included in the extended coverage for the engine block. The manufacturer stated that the unknown NHTSA campaign number for the failure had expired. The failure mileage was approximately 166,000.

30 Coolant Leaking problem

Failure Date: 08/31/2017

On August 31, 2017 while I was driving on the highway, the car stopped running and smoke came out of the hood suddenly. Fortunately I managed to pull over the car to a safe place immediately beside the highway otherwise I would have been in a fatal situation. I had the car towed to the dean Honda at pittsburgh where they performed the diagnosis to find the root cause of the problem. They identified that there was crack in the engine block which has caused the coolant to leak from the engine and hence overheating of the engine has happened. They told me that the engine has to be replaced and few other parts as well (like spark plug etc. ) to make the car running again which would cost me around $4000. I did some research over the internet regarding this issue and found that most of the 2006 to 2009 Civics had the engine crack issue and TSB 10-048 was issued and the warranty of such engines were extended to 10 years and that would cover the replacement of the engine if such issues are found. I checked with my service consultant at dean Honda if this would be covered under the extended warranty. He did a VIN inquiry and said the warrant has expired 10 days ago and this won't be covered. (the original purchase date of the car was 22-Aug-2007 and this incident happened to me on 31-Aug-2017). This is a big blow to me. This is my first car in the us. I bought this car as the second owner in July 2015 with only 36000 miles on it and I have hardly driven 15000 miles over the past two years without any issues. The previous owner also never had any issues with it and that's why I purchased it with confidence. Considering customer's safety, these engines needs to be recalled by Honda and replaced with new ones or at least the warranty of these engines needs to be extended further (for at least for 5 more years). I was lucky enough to survive a fatal accident.

31 Coolant Leaking problem

Failure Date: 08/04/2017

The engine block cracked and began leaking coolant. I was driving and smelled something burning, and my car was smoking from underneath the hood. It is 6 months passed the 10 warranty. I am not alone in this issue, as numerous people have recommended me to this site. It is very upsetting to me.

32 Coolant Leaking problem

Failure Date: 07/20/2017

"cracked engine block" I own a 2007 Honda Civic. I purchased it new from a Honda dealer and just recently starting experiencing a coolant leak. After a 35 minute commute to work, as I get out of my vehicle, I would notice a burnt coolant smell. I brought my vehicle to my mechanic and as soon as I mention the word coolant. . . My mechanic informed me the american Honda corporation is aware of the problem with their 2006 to 2009 Honda Civic's that have crack engine blocks which causes coolant to leak out. I was flabbergasted! I purchased my Honda due to their reputation of reliability and longevity. How could they be aware of this problem and only issue an extended warranty and not a recall. This is a huge safety issue. I contacted the american Honda corporation and they said based on my VIN#, my vehicle is out of the warranty period by 4 months and they will not cover the repair or replacement of the engine block. I feel the NHTSA need to force Honda to issue a recall on all Honda Civics between the years of 2006 to 2009 with cracked engine blocks. I have read it was due to poor casting that caused these engine blocks to crack. Honda will continue to receive calls and complaints in regards to this issue because they have sold millions of these vehicles to unbeknownst americans.

33 Coolant Leaking problem

Failure Date: 07/04/2017

2007 Civic ex, 124,000 miles, while driving on major interstate engine leaked coolant & overheated. Pulled off interstate & towed home. Problem diagnosis: cracked engine block. Honda acknowledged this is an engine design defect and issued technical service bulletin 10-048 extending engine warranty to 10 yrs (120 mos), unlimited mileage, free engine replacement. My engine cracked at 10 yrs, 3 mos. Called Honda customer service (CA) 800-999-1009. Honda agent said car was out of warranty, Honda can't help me. Spoke to Honda agent's regional manager; same story, unwilling to help. If engine cracked 3 mos earlier, free replacement. I offered to share repair cost, Honda customer service manager said no, and she would not let me speak to her superior. She told me to take legal action if I felt Honda owed me something. New engine is a $4000-$5000 fix, more than value of car. I'm stuck with worthless Civic with cracked engine and only 124k miles. Will never buy Honda again after this experience. Buyer beware of used 2006-2009 Honda Civics.

34 Coolant Leaking problem

Failure Date: 05/19/2017

A couple days after purchasing a 2007 Honda Civic with 150,000 miles, it suddenly overheated while I was driving it and began smoking as I attempted to pull off the road. Upon examining the car, there was no coolant in the reservoir (despite adding coolant, the coolant levels consistently drop but there is no external leak). Fortunately, I was able to pull off the road in time. Honda recognized that the engine blocks for 2007 Honda Civics were defective (Honda service bulletin 10-048) but no longer covers repairs for the safety risk that their defective engine blocks pose to drivers of these vehicles and others on the road when their cars overheat.

35 Coolant Leaking problem

Failure Date: 01/10/2017

The contact owns a 2007 Honda Civic. While driving 55 mph, smoke appeared from the front of the vehicle and the temperature gauge increased. The contact pulled over to the side of the road, inspected the vehicle, and noticed that the dashboard was wet and coolant was leaking underneath the vehicle. An independent mechanic diagnosed that the engine assembly needed to be replaced. The dealer (herb chambers Honda, 1186 commonwealth avenue, boston, MA 02134, (617) 731-0100) was contacted and confirmed that the VIN was not included in any recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 210,000.



Safety Ratings of Civic Cars
Fuel Economy of Civic Vehicles
Civic Service Bulletins
Civic Safety Recalls
Civic Defect Investigations