Ratling noise near water pump and power steering pump.S320

[azr67]

hI,
I am getting ratling noise underneath water pump and power steering reservoir when i put the gear in "D"....on moving gear to "P" sound vanishes.
Is this the problem with the power steering pump or belt needs to be adjusted????

Please help.

ALAN

 

[kevinE200]

Hi there,

I have the same problem in my 1998 W210 E200 too, my machanic said it might be the tensioner. I really don't know!! can anyone give me some hints??

 

[jimmy]

The belt tensioner is a common cause for rattles and squeaks, strange how changing the gear make the noise come or go.

The tensioner can be replaced quite easily.

 

[jaymanek]

well youre sudenly putting load on the engine when you put in d...common problem, not expensive to repair..

 

[Dave Lewis]

well youre sudenly putting load on the engine when you put in d...common problem, not expensive to repair..

I had this noise too, it was the damper rather than the actual tensioner.

 

[kevinE200]

What do you mean by damper?? Where is this thing? Expensive to fix/change it?? Thks!

 

[Dave Lewis]

What do you mean by damper?? Where is this thing? Expensive to fix/change it?? Thks!

It's a telescopic damper, like a miniature shock absorber, fixed between the cylinder head and the tensioner pulley. I had mine replaced, along with a new polybelt, for a cost of £25 labour, £23 for the belt, and £24 for the damper, done by a specialist in Bristol. The belt was worn, and the damper was rattling, especially under load. If I wasn't busy as a musician, and hence having to take care of my hands, I would have done the job myself.

 

[Sp!ke]

I agree, most likely to be a dampner.

Symptoms are a sort of diesel type rattling noise at tickover and low revs under load.

 

[kevinE200]

I had my Damper, tension pully and the belt changed today. the engine is just a bit quieter than before, the rattling noise comes back when I turn my steering in standing still and the gear is in D.

I agree, most likely to be a dampner.

Symptoms are a sort of diesel type rattling noise at tickover and low revs under load.

 

[jaymanek]

u should never turn ure steering standing still, a lot of stress on the pumps.. Maybe the belt has not been adjusted properly? Whats it like when cold??

Jay