Cranckshaft Position Sensor Help!
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
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From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Cranckshaft Position Sensor Help!
I've done a bit of searching and maybe I didn't go back far enough but can anyone point me to a DIY to R&R the crankshaft position sensor for a V8?
I saw tons of threads for the ML320 but no V8.
I did have one additional question. I'm assuming that when the CPS goes bad it does not always throw a code? Correct?
Thanks!
I saw tons of threads for the ML320 but no V8.
I did have one additional question. I'm assuming that when the CPS goes bad it does not always throw a code? Correct?
Thanks!
Super Member
Joined: Jul 2005
Posts: 717
Likes: 1
From: Manassas, VA, USA
2011 VW cc, 2004 ML350
The CPS is in the same location on the V8 as it is on the V6, you just have less room to work 
You are correct that it doesn't always throw a code. Ours started with a failure to do a couple hot restarts, but it did throw a code the second time. I bought the sensor, but thought I had more time to replace it. It completely failed just a few days later. Took 20 minutes to replace. Now runs better than it has in a long time and fuel mileage is up about 10% as well.
You are correct that it doesn't always throw a code. Ours started with a failure to do a couple hot restarts, but it did throw a code the second time. I bought the sensor, but thought I had more time to replace it. It completely failed just a few days later. Took 20 minutes to replace. Now runs better than it has in a long time and fuel mileage is up about 10% as well.
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
Likes: 0
From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
The CPS is in the same location on the V8 as it is on the V6, you just have less room to work
You are correct that it doesn't always throw a code. Ours started with a failure to do a couple hot restarts, but it did throw a code the second time. I bought the sensor, but thought I had more time to replace it. It completely failed just a few days later. Took 20 minutes to replace. Now runs better than it has in a long time and fuel mileage is up about 10% as well.
You are correct that it doesn't always throw a code. Ours started with a failure to do a couple hot restarts, but it did throw a code the second time. I bought the sensor, but thought I had more time to replace it. It completely failed just a few days later. Took 20 minutes to replace. Now runs better than it has in a long time and fuel mileage is up about 10% as well.
How did you manage to do it in 20 min???
I just finished changing mine out and it took me about two hours from the fender area.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
I've done a bit of searching and maybe I didn't go back far enough but can anyone point me to a DIY to R&R the crankshaft position sensor for a V8?
I saw tons of threads for the ML320 but no V8.
I did have one additional question. I'm assuming that when the CPS goes bad it does not always throw a code? Correct?
Thanks!
I saw tons of threads for the ML320 but no V8.
I did have one additional question. I'm assuming that when the CPS goes bad it does not always throw a code? Correct?
Thanks!
Super Member
Joined: Jul 2005
Posts: 717
Likes: 1
From: Manassas, VA, USA
2011 VW cc, 2004 ML350
I laid on top of the engine basically, lol. I've always had a special talent for working on things I can't actually see. Once I knew where it was and how it was oriented, "seeing" it with my fingers was good enough. That being said, there's more room with the V6 from what I understand. Never had to do this job with our old 430.
