Help! 190E Knocking ASD sound? - PeachParts Mercedes-Benz Forum

Snibble · #1 07-20-2006, 08:12 AM

I've got an annoyance with the car and can't seem to find out what it is nor can I find someone in person to figure out what could be the problem.

I've attached a picture of the "thing" thats causing a loud knocking sound with the hose pulsating as if it were a heart. I've used MSPaint to make two arrows showing what exactly is moving/knocking. It occurs once the car has been driven for a while and is fully warm. My guess its got something to do with ASD... but what and why? Any help/input is GREATLY appreciated.

The car in question is a 1991 190E 2.0 5-speed (Euro) tuned by AMG at Affalterbach. However, the part thats giving the problem has to be a standard mercedes part.

4uky · #2 07-20-2006, 08:27 AM

I don't have this car, but it looks like a water pump to me.

The throbbing would be some kind of issue with the impeller.

mctwin2kman · #3 07-20-2006, 08:42 AM

Does that one have SLS? I thought that was the SLS pump there on the front of the block. You lucky Euro folks get all the goodies. Well until it breaks.

Snibble · #4 07-20-2006, 09:14 AM

Quote:

Originally Posted by mctwin2kman

Does that one have SLS? I thought that was the SLS pump there on the front of the block. You lucky Euro folks get all the goodies. Well until it breaks.

As posted, the car has ASD and that hydraulic fluid tank is for the ASD. The car does not have SLS.

Snibble · #5 07-20-2006, 09:15 AM

Quote:

Originally Posted by 4uky

I don't have this car, but it looks like a water pump to me.

The throbbing would be some kind of issue with the impeller.

I don't think thats water pump related... the water pump is located on the right side(not in photo). Anyone know what the things pointed out with the red arrows/question marks are?