My 2003 330d (122,000km) has bit a boost issue.
The other day I noticed there was power was only coming in at 2250rpm, 2 days later Im only getting boost at 3000rpm. This morning Im getting power around 2750rpm.
I had a look at a few forums in the UK but it can be quite a few things.
Few guys are talking about butterfly valves (orsomething) sticking but my car is a 2003 330d with the M57 engine, this has the new upgraded head that does not have this problem.
So this weekend I cleaned the EGR valve and disconnected the vacuum pump, this did not fix the problem but my car was smoking less after I did this( not using exhaust gases after removing vacuum pipe) and when the power came (3000rpm) it really pulled like a train!
I also disconencted the MAF to see if it would solve it but it didnt. On most forums they say its a faulty MAF and and some say you cannot see if its faulty by disconnecting (did not make adifference in my case). I did give the resistor on the MAF a clean with some elextrical contact cleaner.
Most people say its the crankcase breather? Now what is that and where is it? can some1 find it on here and point it out. www.bmwfans.info
One guys said it could be a boost control solenoid or something. I dought its a faulty Injector or a problem with the turbo because I am getting full boost just at higher rpm.
Before I take my car in, I wanto see if any1 has had this problem or if you have any ideas.
When I take it in where should I take it? The Stealership, Steves auto clinic or some other guys? I wanto take it somewhere where they know what the problem is, not replace half the engine to solve it.
The other day I noticed there was power was only coming in at 2250rpm, 2 days later Im only getting boost at 3000rpm. This morning Im getting power around 2750rpm.
I had a look at a few forums in the UK but it can be quite a few things.
Few guys are talking about butterfly valves (orsomething) sticking but my car is a 2003 330d with the M57 engine, this has the new upgraded head that does not have this problem.
So this weekend I cleaned the EGR valve and disconnected the vacuum pump, this did not fix the problem but my car was smoking less after I did this( not using exhaust gases after removing vacuum pipe) and when the power came (3000rpm) it really pulled like a train!
I also disconencted the MAF to see if it would solve it but it didnt. On most forums they say its a faulty MAF and and some say you cannot see if its faulty by disconnecting (did not make adifference in my case). I did give the resistor on the MAF a clean with some elextrical contact cleaner.
Most people say its the crankcase breather? Now what is that and where is it? can some1 find it on here and point it out. www.bmwfans.info
One guys said it could be a boost control solenoid or something. I dought its a faulty Injector or a problem with the turbo because I am getting full boost just at higher rpm.
Before I take my car in, I wanto see if any1 has had this problem or if you have any ideas.
When I take it in where should I take it? The Stealership, Steves auto clinic or some other guys? I wanto take it somewhere where they know what the problem is, not replace half the engine to solve it.
