Brake Sensor Problems of Volvo S40

Volvo S40 owners have reported 4 problems related to brake sensor (under the service brakes category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volvo S40 based on all problems reported for the S40.

1 Brake Sensor problem of the 2007 Volvo S40

Failure Date: 05/09/2014

Tl- the contact owns a 2007 Volvo S40. The contact stated that the brake sensor illuminated indicating low brake fluid. The vehicle was taken to an authorized dealer. The technician replenished the brake fluid and reset the brake sensor. The contact indicated that shortly after the brake sensor was reset by the dealer, the failure recurred. The vehicle was taken to an independent repair shop who was not able to replicate or diagnose the failure. The vehicle was not repaired. The contact was not included in recall NHTSA campaign number: 08v101000 (brakes). The manufacturer was notified of the failure. The approximate failure mileage was 65,000. Pam.

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2 Brake Sensor problem of the 2005 Volvo S40

Failure Date: 05/02/2014

(s40 2. 4i) initial car message: "brake failure, pull over safely. " I continued to drive home since I was a few blocks away. Message changed to "anti skid service required" then back to brake failure again. Difficulty accelerating after stopping, felt like the parking brake was on but drove ok once accelerated. Attempted to turn off car but message changed to "immobilizer, check manual" and could not turn key to off position. From what I read in the manual, it appeared that the card didn't recognize it was in park. Turned parking brake on and off a few times and was able to turn off car. Brought to local mechanic who replaced brake pad sensor and anti-stop switch. --in and out of auto repair shop 4x over the past month w/the same issues and new symptoms: wipers turned on automatically and don't shut off and new message: engine system service urgent. --mechanic replaced some rusted wires, brought to a Volvo dealer who reset computer and did not find any problems. --still having same issues. Cannot put car into drive or turn off car when brake failure or anti-skid message appear but if I wait a few minutes, I can turn the car off and on a couple of times to get to the engine system service urgent message and I can then put it into drive. Sometimes all messages go away and it is fine for a few days but then the car jerks forward as if someone bumped the car and all messages appear again. New message: power steering message flashed briefly . . Although there was no problem w/the steering. Bringing to another Volvo dealer. . The saga continues. --I read prior consumer complaints on this site and I also had the sunroof leakage problem in 2013. Entire floor of car was soaked, especially passenger side. Took 3 visits, weeks and $900 to get it fixed. Volvo first cleaned out the clogged line but carpets were wet again so they then replaced the entire line.

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3 Brake Sensor problem of the 2005 Volvo S40

Failure Date: 12/06/2012

Car stalls with out warning when travel at speeds of 0-65 mph very dangerous!! there are recalls fuel pressure sensors for nearly all Volvo makes except the S40 2005 this part is truly a defective item and needs to be recalled before a death occurs on the highway!! I thought Volvo was a safe reliable car but I can honestly say this car is the biggest piece of junk I have ever spent a lot if money on. The tires blew out on the sides which also put me in danger the interior headliner fell off as well as all other material on the doors all leather is loose gear shifter cover fell apart. Gas cap broke gas builds too much pressure loosening the gas cap frequently these are just some of the issues I have. Very disappointed in this vehicle I keep my car in the garage. Only drive to and from grocery shopping and dr appts please consider recalls on the important parts of the vehicle that can save lives!.

4 Brake Sensor problem of the 2000 Volvo S40

Failure Date: 10/02/2012

I was stopped at a red light behind several cars. The light turned green and I took my foot off the brake, but did not put my foot on the accelerator. The car engine revved up and lurched forward despite me attempting to break heavily. The brakes would not fully decompress causing me to rear end the vehicle in front of me. I purchased the car used with 134,100 miles. I noticed about 5 months after purchase that the engine would rev and the rpm's would remain high without pressing on the accelerator and the car will move approximately 10-15 mph without pressing on the accelerator. When roads are wet or when it has been raining, the car is difficult in braking and the brakes often "freeze" where the brake pedal cannot be depressed. Brakes were replaced, but the issue persists. Also, at times, the car engine continues to rev when pressing on the brakes. Lastly, the engine light came on, it was indicated via a diagnostic test that there was a misfire with one of the spark plug coils. All spark plugs and coils/ignition coils were replaced, engine light persisted. At the time the temp sensor and the thermostat was replaced as the ignition coils and spark plugs did not alleviate the issue. When a following diagnostic test was performed indicated that the coolant temp sensor has low voltage. Sometimes the car engine will turn, but the car will not fully turn on and I need to wait about 10 minutes (or until the fan turns off) before being able to attempt to start the car. Due to the issues with the car, the car cannot get an inspection sticker, and it does not seem safe to drive. Due to massachusetts car laws, we cannot sell the car due to lemon law and the car is worth more than scraping. We also had a broken axel and coil that were replaced after hitting a pothole.

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Safety Ratings of S40 Cars
Fuel Economy of S40 Vehicles
S40 Service Bulletins
S40 Safety Recalls
S40 Defect Investigations