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#1 (permalink) Old 10-07-2012, 10:31 AM
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Failed to start

Well, went grocery shopping this morning. Key in tuned to start, cranked for 10 seconds maybe without sounding like it wanted to fire off. Key off, try again. this time maybe 5 seconds of cranking and it started right up but set a CEL. I don't have my code reader here so I won't know until I get to work what code this is.

My real question is about SDS. Seems I should think about getting one. I hear some can read but can't reset codes (versioning?) I think I have a small suspension leak too. Can someone point me in the right direction for and SDS setup.. I have laptops, I just need the interface/software I suppose?

Thanks in advance.

Bill
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#2 (permalink) Old 10-07-2012, 12:21 PM
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Can't help you with the SDS but you may want to check your CPS, it is known to go bad on the 3.2l and your symptoms are spot on(no start when engine is hot, starts right up after a while)
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#3 (permalink) Old 10-07-2012, 02:04 PM
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Ok so the CEL code is Crankshaft position sensor. I can get one from autohausaz for about 50 dollars. Its an OEM Bosch.

I can get one from my local Autozone for about the same price with a lifetime warranty.

Now normally I always use OEM parts or Bosch. etc. However if these fail so often can the aftermarket one be worse?

I can get it local and be fixed today.. otherwise part comes in on Thursday and really the weekend before I can get to it.

Watchathink?

Bill.
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#4 (permalink) Old 10-07-2012, 03:46 PM
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I'm guessing Autozone has their Duralast brand which could be anything. The sensor will work, if you're in a bind go for it otherwise I would wait for ther Bosch from Autozone.
The old sensors had water/corrosion problems because of a poor seal, the new versions have a much better seal.
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#5 (permalink) Old 10-18-2012, 12:49 PM
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Crankshaft Position Sensor failure is a real common problem on both my E320/W211.

It is definately a DIY repair. The Canadian Mercedes dealer sells the CPS for $185.00. I buy the Bosch sensor from AutohausAZ for $46.00 CDN. You will need to determine if your wiring harness has two locking clips or one on it before you repalce it. This is as simple as reaching down to its location and removing the harness and visually checking it.

The tools required for this job are;
1. an E8 socket, 1/4inch drive
2. an 8-12 inch 1/4" drive extension
3. a 1/4" swivel adapter (socket)
4. and of course a 1/4" ratchet
5. needle nose pliers and a magnet may come in handy.
When removing the bolt from the sensor my advice is to do it in stages. Undo the bolt 3 or 4 turns then use your needle nose pliers to pull the sensor up until it bottoms on the bolt head. do this a few times until the sensor is out. the reason for this is that you stand a good chance of losing the bolt if you take it out all at once. You have a very limited space and are doing this job by feel. My 1998 wagon had the double locking clip configuration. I found it easiest to remove the harness and sensor as one unit as the double clipped harness was difficult to get off in the confined space. Using the 1/4" drive tools give you just a bit more room to work with, especially helpful when removing CPS from S-class as the space is even further compromised by a metal plate. Good Luck!

Last edited by chiro; 10-18-2012 at 12:52 PM. Reason: grammar
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#6 (permalink) Old 10-18-2012, 01:08 PM
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Thanks everyone..

I replaced this last weekend and so far it seems to have solved my problem..

Just a note for everyone.. I had 3/8' drive E8 socket that I couldn't get to work. (not enough room between the electrical connector and the bolt) I ordered up a 1/4 drive set and that made the job quite easy.. I'd say start to finish including cleanup 10 minutes.

I opted for the local Autozone Duralast brand because, A. I was able to get it same day and B. it had a lifetime warranty.

I'll keep you posted if I ever have to use that warranty.

Thanks for your help everyone,

Bill.
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