SL/R230: Crankshaft position sensor
Thread Starter
Senior Member
Joined: Oct 2009
Posts: 269
Likes: 4
From: New York
03 SL500(Sold), 09 C300, 11 E550
Crankshaft position sensor
Does anyone know where this thing is located? I just got my car back from the dealer and they didn't change it because it wasn't throwing a code... I've read some posts saying to look between the firewall and drivers side valve covers but i cant find it.
any help would be appreciated... i hate having to disconnect the battery every time this happens...
any help would be appreciated... i hate having to disconnect the battery every time this happens...
Member
Joined: Aug 2011
Posts: 110
Likes: 0
From: Springboro, Ohio
2004 SL600 Renntech
Work Instructions
NOTE: Remove Air cleaner (engine side).
Crankshaft position sensor to engine block - 8 N.m
NOTE: If the crankshaft position sensor (L5) was replaced, a re-initialization must be carried out with STAR DIAGNOSIS in the menu item control module adaptations.
NOTE: Remove Air cleaner (engine side).
Crankshaft position sensor to engine block - 8 N.m
NOTE: If the crankshaft position sensor (L5) was replaced, a re-initialization must be carried out with STAR DIAGNOSIS in the menu item control module adaptations.
Thread Starter
Senior Member
Joined: Oct 2009
Posts: 269
Likes: 4
From: New York
03 SL500(Sold), 09 C300, 11 E550
Work Instructions
NOTE: Remove Air cleaner (engine side).
Crankshaft position sensor to engine block - 8 N.m
NOTE: If the crankshaft position sensor (L5) was replaced, a re-initialization must be carried out with STAR DIAGNOSIS in the menu item control module adaptations.
NOTE: Remove Air cleaner (engine side).
Crankshaft position sensor to engine block - 8 N.m
NOTE: If the crankshaft position sensor (L5) was replaced, a re-initialization must be carried out with STAR DIAGNOSIS in the menu item control module adaptations.
Trending Topics
Thread Starter
Senior Member
Joined: Oct 2009
Posts: 269
Likes: 4
From: New York
03 SL500(Sold), 09 C300, 11 E550
Thanks for the info. I didn't have access to a scanner so i brought it to a local mechanic. changed 100 bucks. i actually noticed that changing the CPS cured my rough idle which is an added bonus!!
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Junior Member
Joined: Apr 2012
Posts: 41
Likes: 0
From: New Orleans , LA.
ML 320 HEAVY METAL EDITION
CPS 99 e320
is it mandatory that a star system code this after i replace? Not interested in paying a mechanic for something I can do because I am also having that issue.
Car died this morning after only operating for about 20 minutes. 20 minutes later it cranked up... got me home. Turned ignition off... tried to start back up. no luck. 20 min or so... started back up..
After reading all these post, I found the sensor, removed looked at. blew out little bit, then plugged back up. Cranked up..after another regular temp is reached.. I turn off then try start again. Not firing up.
I am assuming it is indeed the CPS so will replace and buy an spare. Only had this e320 for 5 days and already this. You would think with a 59k new price tag, the company could do better than this. I bet the heat from the engine encourages this to happen somehow in the sensor. Overall pleased with the car. After all , it's my 1st "used" Benz
"Par for the course"
Car died this morning after only operating for about 20 minutes. 20 minutes later it cranked up... got me home. Turned ignition off... tried to start back up. no luck. 20 min or so... started back up..
After reading all these post, I found the sensor, removed looked at. blew out little bit, then plugged back up. Cranked up..after another regular temp is reached.. I turn off then try start again. Not firing up.
I am assuming it is indeed the CPS so will replace and buy an spare. Only had this e320 for 5 days and already this. You would think with a 59k new price tag, the company could do better than this. I bet the heat from the engine encourages this to happen somehow in the sensor. Overall pleased with the car. After all , it's my 1st "used" Benz
"Par for the course"
Last edited by BSR Music; Apr 30, 2012 at 12:57 AM. Reason: update
Newbie
Joined: Sep 2009
Posts: 7
Likes: 0
2004 sl500
I have a 2004 SL500 and I have the same problem about stalling when the engine is hot. But, I can't locate the sensor in the back of the engine on the driver side. Would it be easier to look under the car as suggested by JamesC32.
Member
Joined: Aug 2011
Posts: 110
Likes: 0
From: Springboro, Ohio
2004 SL600 Renntech
It's WAY in the back of the engine just below the left cylinder head and near the bellhousing.
Newbie
Joined: Sep 2009
Posts: 7
Likes: 0
2004 sl500
Thank you. Finally got it. 'Just below' the cyulinder head (I was looking further down before). I can only feel it with my finger. It took me about 20 minutes to change from above, no need to go under the car. Just be careful not dropping the mounting screw.
Junior Member
Joined: Apr 2012
Posts: 41
Likes: 0
From: New Orleans , LA.
ML 320 HEAVY METAL EDITION
CPS
I must have gotten a bad "new CPS because mine wont crank with the new one in. Gee the trouble the Benz have inst worth owning in my opinion. You would think for a 59k car, MB could do better than this.
Member
Joined: Aug 2011
Posts: 110
Likes: 0
From: Springboro, Ohio
2004 SL600 Renntech
If it truly won't "crank", it has nothing to do with the crank sensor.
Junior Member
Joined: Apr 2012
Posts: 41
Likes: 0
From: New Orleans , LA.
ML 320 HEAVY METAL EDITION
@HemiTom it wil crank (turn over & fire up) with the old one in.. but the new one ( a Duralast ) from Autozone wont work for some reason. replacing today with a different brand. 
Member
Joined: Aug 2011
Posts: 110
Likes: 0
From: Springboro, Ohio
2004 SL600 Renntech
Junior Member
Joined: Apr 2012
Posts: 41
Likes: 0
From: New Orleans , LA.
ML 320 HEAVY METAL EDITION
GOOD NEWS on 99 E320 CPS !!!!
Replace with yet another brand sensor (Import Direct) and it fired right up.
No need for a Star coder and saved myself a buttload of cash. Amazing what you can learn from others who had the same issues. Although I did rev up for 20 sec at 3ooo rpm as someone suggested, it seem to work just fine. Interstate @ 70 mph..after a few miles all is smooth. -
MORAL of the Story - If you are calm enough, you can save money. Although I do recommend original parts, I will definitely buy a spare and keep the old.
TIPS - To keep from losing the star bolt, attach a thread to it for saftey in case it is dropped.
TOOLS NEEDED - E8 socket - 2 extentions and ratchet. Viola! Success!
Thanks to OhLord - Hemi Tom & Musikman for the guidance
Replacement part - http://www.oreillyauto.com/site/c/de...eyword=19-0462
No need for a Star coder and saved myself a buttload of cash. Amazing what you can learn from others who had the same issues. Although I did rev up for 20 sec at 3ooo rpm as someone suggested, it seem to work just fine. Interstate @ 70 mph..after a few miles all is smooth. -
MORAL of the Story - If you are calm enough, you can save money. Although I do recommend original parts, I will definitely buy a spare and keep the old.
TIPS - To keep from losing the star bolt, attach a thread to it for saftey in case it is dropped.
TOOLS NEEDED - E8 socket - 2 extentions and ratchet. Viola! Success!
Thanks to OhLord - Hemi Tom & Musikman for the guidance
Replacement part - http://www.oreillyauto.com/site/c/de...eyword=19-0462
Last edited by BSR Music; May 4, 2012 at 06:21 PM.
Newbie
Joined: Aug 2013
Posts: 6
Likes: 1
2004 sl500
What tools did you use to remove it? I have the e8 torx socket and an 8" extension and can't seem to get at it good enough to loosen it
Newbie
Joined: Dec 2008
Posts: 2
Likes: 0
From: Eastern Tennessee
2003 SL500
Newbie
Joined: Aug 2014
Posts: 1
Likes: 0
2003 SL500
For the benefit of future readers, I just replaced the CPS on my 2003 SL500 and the first step after you remove the air cleaner assembly is to remove one of the zip ties. (Picture below) Doing so will allow you to move the bundled wires to one side and expose the sensor. Also the E8 torx head bolt that mounts the sensor to the engine points up at a 45 degree angle so you need to be mindful of that when you are trying to get the E8 torx socket to engage that bolt head. Before you remove the bolt tuck some shop towels down in those places that it would likely land if you drop it.https://mbworld.org/forums/images/attach/jpg.gif
Is there any video online or good pictures to show how to change this? The dealer said 250 and I would really like to at least attempt to change it myself before I give in to the dealer. I have no clue of what I'm doing but need to save the money..any help is greatly appreciated. I have a 2003 SL500..thanks
Newbie
Joined: Dec 2008
Posts: 2
Likes: 0
From: Eastern Tennessee
2003 SL500
On your car to get the hood to stand vertically you need to release one latch on the driver's side as opposed to two latches as shown in this video. Very simple procedure to perform. Be sure to remove the zip tie as mentioned in my previous post or otherwise you will not see the sensor at all.
Newbie
Joined: Dec 2014
Posts: 13
Likes: 0
From: oklahoma
07 E350
no relearn
I have replaces the cps on a 04 e320 and it cuts out twice then dies. Ive tried to use my Autell and my Snap On modis ultra to reset and relearn but ive tried several ways but no luck . Im doing something wrong but cat figure it out.
