Hi everyone!
I'm new to the board, and have been the proud owner of a 1992 3.6 since April.
My previous was a 1994 540i, and before that was a 535. (All E34).
The M5 is the most amazing car I have ever owned. It does however have a little problem which I hope you may be able to help me with.
When I start the car in the morning, the exhaust is very noisy. It appears to be blowing fom the manifold, but it isn't. When the engine speed exceeds 2600rpm, the noise stops, but comes back when the engine speed drops again. After about 15 minutes of driving, the noise stops, and doesn't come back until the next day.
I have now discovered that if I leave it run from cold (and noisy) for a minute or two, turn the engine off and restart it, the noise is gone!
I've asked my local 'specialist' and my nearest franchise, but they have no idea what I am talking about!!
I have been led to believe that there is an air pump on the exhaust system which may be causing my problems?
Any help wouold be much appreciated.
Regards,
Adam
I'm new to the board, and have been the proud owner of a 1992 3.6 since April.
My previous was a 1994 540i, and before that was a 535. (All E34).
The M5 is the most amazing car I have ever owned. It does however have a little problem which I hope you may be able to help me with.
When I start the car in the morning, the exhaust is very noisy. It appears to be blowing fom the manifold, but it isn't. When the engine speed exceeds 2600rpm, the noise stops, but comes back when the engine speed drops again. After about 15 minutes of driving, the noise stops, and doesn't come back until the next day.
I have now discovered that if I leave it run from cold (and noisy) for a minute or two, turn the engine off and restart it, the noise is gone!
I've asked my local 'specialist' and my nearest franchise, but they have no idea what I am talking about!!
I have been led to believe that there is an air pump on the exhaust system which may be causing my problems?
Any help wouold be much appreciated.
Regards,
Adam