One problem related to engine exhaust system has been reported for the 1997 BMW 540. The most recently reported issues are listed below.
I exchanged the lambda sensor of my car a couple of months ago. Suddenly my mileage went down and I started an error search. Since I was doing a couple of other things on the car I didn't come up with the sensors up front. Updated 11/16/10 updated 03/23/11 so when it came to them I recognized that they were grounded through the exhaust what they shouldn't do at my car! when I asked the manufacturer they dismissed everything as if it is not their fault. . Read more...
| Radiator problems | |
| Engine Cooling System problems | |
| Catalytic Convertor problems | |
| Engine Exhaust System problems | |
| Cooling Fan problems |