Smashed power steering pump pulley

Tiny
SHEILA FORBES
  • MEMBER
  • 2005 MERCEDES BENZ 220CDI
  • 55,000 MILES
Very old car, power steering broken, cannot get replacement pulley.

do you know if FEBI 30123
or
BMW E39 E46 Z3 Power Steering Pump Pulley 131mm FEBI Diameter 32421740858
or
http://picclick.ca/FEBI-BILSTEIN-Germany-Power-Steering-Pump-Pulley-30123-291896993438.html
http://picclick.ca/FEBI-BILSTEIN-Germany-Power-Steering-Pump-Pulley-30123-291931219038.html
would work in the Mercedes?

You can see I am not a mechanic, so i do not know much, but I love that old car! Can you help me? The garage is going to tow!
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Friday, November 18th, 2016 AT 5:16 AM

14 Replies

Tiny
HMAC300
  • EXPERT
Try junkyardog. Com type in information and if anyone has the correct one they will contact you with price.
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Friday, November 18th, 2016 AT 7:16 AM
Tiny
SHEILA FORBES
  • MEMBER
I really need to know what I can substitute now. There are lots of BMW 3-series Power Steering Pump Pulleys here - can I safely use one? BMW PART NO - 32421740858
(Or FEBI 30123 Pulley)

Can it work instead of Mercedes original part number A6112300115 Power Steering Pump Pulley for Mercedes-Benz C-Class (W203) ML (W164) & E-Class (W210)

They look the same - can anyone compare the specs?
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Friday, November 18th, 2016 AT 7:30 AM
Tiny
HMAC300
  • EXPERT
We cannot say for sure it has to have the same grooves and diameter as well as bolt holes line up so it will fit. If the grooves are wrong it will eat the serpentine belt up and everything has to line up correctly or you run into serious problems like belts get bad very quickly and you lose power steering we do not have a diesel model in USA anyhow.
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Friday, November 18th, 2016 AT 8:00 AM
Tiny
SHEILA FORBES
  • MEMBER
Dear HMAC300,
We bought the BMW P/S Pully and it is identical except it is not plastice like the Mercedes original, and itis 4 mm smaller diameter. (Since it is a tensioner pulley - that may not matter?) And seems identical in every other aspect.
The car is actually a 2005 W211 E320CDI and is super great in every way except the cruddy plastic Mercedes pulley.
We are going to try a BMW Aluminum pulley just because.
Thanks so much for the tests.
I will keep you posted.
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Friday, November 18th, 2016 AT 8:28 AM
Tiny
HMAC300
  • EXPERT
With the 4 mm difference is not a lot but it may take the tensioner to it upper limit which would have you get a different belt to compensate for that. Good luck
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Friday, November 18th, 2016 AT 12:04 PM
Tiny
SHEILA FORBES
  • MEMBER
Hi HMAC300,

Will watch for serpentine belt shortness, but so far so good!
No wobble or other indicator of problem.
Driving it home tomorrow (almost 100 kms.) That will be the real test.
Thanks again.
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Friday, November 18th, 2016 AT 12:58 PM
Tiny
SHEILA FORBES
  • MEMBER
Substitute BMW 3-series power steering pump pulley worked fine for next 100 km. Will post again if any change.
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Saturday, November 19th, 2016 AT 1:00 PM
Tiny
KEN
  • ADMIN
Please let us know happens so it will help others.

Best, Ken
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Saturday, November 19th, 2016 AT 4:58 PM
Tiny
SHEILA FORBES
  • MEMBER
Hi Ken,
Would a movie of the BMW aluminium power steering pump pulley installed in the 2005 W211 E320CDI and running (taken with an iPhone) help an expert decide whether it's safe to leave it in? It's been driven for 3 days now and seems perfect.
I was looking for someone who could compare the manufacturing shop drawings for the 2 parts. Is there no-one who can tell me how to find them or help by comparing them? It does look as if the 4mm difference in circumference doesn't matter and the rest LOOKS identical.
It may be better to order a replacement Mercedes part now that the BMW one has bought us some time for it to be delivered. Maybe aluminium is bad to put there?

Can I send you the iPhone movie of the replacement running? How?
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Tuesday, November 22nd, 2016 AT 5:44 AM
Tiny
HMAC300
  • EXPERT
4mm is about a little more than 1/8" diff so it's ok if you want regular merecedes part then do so because the new may be steel or aluminum. The only thing with aluminum is it can corrode which I don't think it will on p/s pump and shouldn't matter anyhow.
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Tuesday, November 22nd, 2016 AT 7:31 AM
Tiny
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I was looking for someone who could compare the manufacturing shop drawings for the 2 parts. Is there no-one who can tell me how to find them or help by comparing them? It does look as if the 4mm difference in circumference doesn't matter and the rest LOOKS identical.

We can't be SURE the BMW part is identical without the manufacturer drawings with the measurements of things like rib widths and depths and hub offset. Maybe it's better not to take a chance?
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Tuesday, November 22nd, 2016 AT 7:41 AM
Tiny
KEN
  • ADMIN
A 4mm difference is not enough to effect anything. You will be okay.

Best, Ken
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Tuesday, November 22nd, 2016 AT 9:18 AM
Tiny
HMAC300
  • EXPERT
You have to go to the manufacturer of the pulley who supplies it for drawings etc. Which they will not give you anyhow because it's I n current production
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Tuesday, November 22nd, 2016 AT 1:07 PM
Tiny
SHEILA FORBES
  • MEMBER
Maybe Chinese manufacturers would share the drawings - just to appear to be supportive of customers in distress who wish to buy their products to enable convenient re-use of old machines?
Probably North American and European manufacturers don't support re-use yet.

Thanks for trying.
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Tuesday, November 22nd, 2016 AT 3:09 PM

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