1. Home
  2. BMW Cars and SUVs
  3. 2003 320ci e46 - engine rattle

2003 320ci e46 - engine rattle

Hi,

My 2003 320ci has had the same problem since I bought the car (second-hand with 12000 miles). Three BMW dealers have had a look at the problem, but can't resolve it.

On accelerating, in any gear, I can hear a quiet rattle from the front of the car between 1400 and 2000 RPM. It does it when the car is cold or hot. One dealership suggested it maybe the ERG (Exhaust Gas Recirculation) unit. Another suggested it was a valve in the inlet manifold.

It's annoying, more than anything.

Any ideas.

Cheers,

JG

Reply to
Jimbo
Loading thread data ...

Have you looked at the engine mounts? If the bolts are loose, that could well produce a rattle. Look particularly at the exhaust side of the engine.

Ed

Reply to
Ed Beroset

The stainless steel exhaust in BMWs is a nice touch, but if they didn't use fairly thin mild (non-stainless) steel hangers in the vicinity of the transmission crossmember that rust through and then rattle, leaving the exhaust system unsupported in that area, they would be nicer yet.

Take a look and see if that's where the problem lies. The part is inexpensive, but if not replaced stress might crack the (doubtless *not* inexpensive) SS.

See:

formatting link
...and note especially the part labeled "2".

JRE

Reply to
JRE

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.