CPS - "Crankshaft Position Sensor" Discussion Thread
Senior Member
Joined: Jun 2004
Posts: 396
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From: Mission Viejo, California
2008 c350 SG - 2004 c240 Wagon BS
All I remember is, it was 110* outside in the middle of July and I don't have any inverted Torx sockets.
I got so pissed at the C240 that I went out and bought a new '08 C350.
Then I got the 240 running again and now I have both.
I got so pissed at the C240 that I went out and bought a new '08 C350.
Then I got the 240 running again and now I have both.
MBWorld Fanatic!
Joined: Aug 2007
Posts: 3,560
Likes: 2
From: Sacramento/San Gabriel/Riverside
01' C32o
lmao!
FINALLY DONE with this ****ING PROBLEM!
SCREW THE DEALERSHIP! they wanted a little north of 400 to change the stupid sensor, but i had an mom and pops shop change it for 25$, minus the part, which was about 130. so 25+130 = 155 total, and if you want, plati german service charged me 95 for a diagnosis, even though i toild them it was the CPS. so screw them too! and 20$ for the towing!
oh, don't know if this is true, but to me, after the new CPS, my car seems to be running a little smoother. my idle isn't as rough as it was before, but i maybe imagining things. 01-02's should definitely change their CPS; it's a major pain to be stranded outta nowhere
FINALLY DONE with this ****ING PROBLEM!
SCREW THE DEALERSHIP! they wanted a little north of 400 to change the stupid sensor, but i had an mom and pops shop change it for 25$, minus the part, which was about 130. so 25+130 = 155 total, and if you want, plati german service charged me 95 for a diagnosis, even though i toild them it was the CPS. so screw them too! and 20$ for the towing!
oh, don't know if this is true, but to me, after the new CPS, my car seems to be running a little smoother. my idle isn't as rough as it was before, but i maybe imagining things. 01-02's should definitely change their CPS; it's a major pain to be stranded outta nowhere
Last edited by Mu9enx; Sep 24, 2008 at 10:01 PM.
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
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From: Corona, CA
03 g35 coupe...........02 c32 Sold
lmao!
FINALLY DONE with this ****ING PROBLEM!
SCREW THE DEALERSHIP! they wanted a little north of 400 to change the stupid sensor, but i had an mom and pops shop change it for 25$, minus the part, which was about 130. so 25+130 = 155 total, and if you want, plati german service charged me 95 for a diagnosis, even though i toild them it was the CPS. so screw them too! and 20$ for the towing!
oh, don't know if this is true, but to me, after the new CPS, my car seems to be running a little smoother. my idle isn't as rough as it was before, but i maybe imagining things. 01-02's should definitely change their CPS; it's a major pain to be stranded outta nowhere
FINALLY DONE with this ****ING PROBLEM!
SCREW THE DEALERSHIP! they wanted a little north of 400 to change the stupid sensor, but i had an mom and pops shop change it for 25$, minus the part, which was about 130. so 25+130 = 155 total, and if you want, plati german service charged me 95 for a diagnosis, even though i toild them it was the CPS. so screw them too! and 20$ for the towing!
oh, don't know if this is true, but to me, after the new CPS, my car seems to be running a little smoother. my idle isn't as rough as it was before, but i maybe imagining things. 01-02's should definitely change their CPS; it's a major pain to be stranded outta nowhere
I still find it funny, that most people think its insane to charge for diagnosing except when its on a german car. I know none of the japanese brand dealerships charge for diagnosing.
I felt the same way when i fixed my seat control module for $5 instead of paying $500 from the stealership.
Congrats on the fix.
MBWorld Fanatic!
Joined: Aug 2007
Posts: 3,560
Likes: 2
From: Sacramento/San Gabriel/Riverside
01' C32o
blah you should've done it yourself..you get that extra satisfaction of knowing you fixed something with your hands... But $25 is a pretty good deal.
I still find it funny, that most people think its insane to charge for diagnosing except when its on a german car. I know none of the japanese brand dealerships charge for diagnosing.
I felt the same way when i fixed my seat control module for $5 instead of paying $500 from the stealership.
Congrats on the fix.
I still find it funny, that most people think its insane to charge for diagnosing except when its on a german car. I know none of the japanese brand dealerships charge for diagnosing.
I felt the same way when i fixed my seat control module for $5 instead of paying $500 from the stealership.
Congrats on the fix.
Junior Member
Joined: Dec 2007
Posts: 69
Likes: 3
2002 CLK 430
hey guys i replaced my cps but when i was puting the intake hose back i snapped a small hard plastic hose. can some one tell me whats it for? i traced it to right behind the brake fluid tank see pic.
thanks
http://blastermix.com/photo/gallery/--2008-09-24
thanks
http://blastermix.com/photo/gallery/--2008-09-24
Last edited by tonydr00; Sep 25, 2008 at 09:32 AM.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Super Moderator
Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
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MBWorld Fanatic!
Joined: Aug 2007
Posts: 3,560
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From: Sacramento/San Gabriel/Riverside
01' C32o
some things i noticed off the bat was smoother engine idle, along with higher MPG. what i would usually get for a 50 mile commute from Riverside to San Gabriel has been up by 3-4 mpg.. weird i know, but it's true. drove the same way before i fixed CPS was 22-24 mpg on cruise control at 75-80; now i can reach 25mpg+ easy. a lot smoother and the best part is the ease of mind!
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
yup.
some things i noticed off the bat was smoother engine idle, along with higher MPG. what i would usually get for a 50 mile commute from Riverside to San Gabriel has been up by 3-4 mpg.. weird i know, but it's true. drove the same way before i fixed CPS was 22-24 mpg on cruise control at 75-80; now i can reach 25mpg+ easy. a lot smoother and the best part is the ease of mind!
some things i noticed off the bat was smoother engine idle, along with higher MPG. what i would usually get for a 50 mile commute from Riverside to San Gabriel has been up by 3-4 mpg.. weird i know, but it's true. drove the same way before i fixed CPS was 22-24 mpg on cruise control at 75-80; now i can reach 25mpg+ easy. a lot smoother and the best part is the ease of mind!
MBWorld Fanatic!
Joined: Aug 2007
Posts: 3,560
Likes: 2
From: Sacramento/San Gabriel/Riverside
01' C32o
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Joined: Jun 2003
Posts: 9,498
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From: San Diego, CA & San Jose, Costa Rica & Stuttgart, Germany
1959 220S / 1979 230 G / 2002 A210 AMG / 2003 C320 SC / 2004.5 C320 SS / 2005 ML350 SE / 2008 smart
Could help out a few $$$-starved folks !
glad to hear the car is back up & running smooth !
Carlos
Saprissa@aol.com
MBWorld Fanatic!
Joined: Aug 2007
Posts: 3,560
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From: Sacramento/San Gabriel/Riverside
01' C32o
honestly, i don't even remember the shop's name, LOL.
Super Moderator
Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
yup.
some things i noticed off the bat was smoother engine idle, along with higher MPG. what i would usually get for a 50 mile commute from Riverside to San Gabriel has been up by 3-4 mpg.. weird i know, but it's true. drove the same way before i fixed CPS was 22-24 mpg on cruise control at 75-80; now i can reach 25mpg+ easy. a lot smoother and the best part is the ease of mind!
some things i noticed off the bat was smoother engine idle, along with higher MPG. what i would usually get for a 50 mile commute from Riverside to San Gabriel has been up by 3-4 mpg.. weird i know, but it's true. drove the same way before i fixed CPS was 22-24 mpg on cruise control at 75-80; now i can reach 25mpg+ easy. a lot smoother and the best part is the ease of mind!
The ECU, I presume? - takes TDC or whatever from the CPS. If the CPS is churning out spurious or inaccurate data as it approaches failure then the ECU is going to fire the engine slightly off target & lead to higher fuel consumption & erratic idle?
If this is so then your findings are entirely credible.
Newbie
Joined: Jun 2008
Posts: 23
Likes: 0
2003 C230 KOMPRESSOR SEDAN
Anybody know how to install the crank position sensor
Hi, does anybody know how to install the cps on a 2003 c230 kompressor sedan. I can only feel it and can not put the tool on it because the space between the fire wall and the back of the engine is to tight for my hand to fit. Please any suggestions and advise would greatly appreciate.
Almost a Member!
Joined: Jun 2008
Posts: 43
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From: BEAVERTON OR
c320
you probably need to removed something around the area so that you have enough space to get your hand and tool in, its a little tight but that's what i did and i got iit done. Notice : once you get the old cps out and replace a new one in its going to be a little hard to push the new cps in.
Senior Member
Joined: Sep 2006
Posts: 296
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From: FLORIDA
2003 C240
I had mine done few months ago. No problem since but got me all paranoid now since my car quit on me in the middle of the road in rush hour traffic....
Also my mechanic bent the heat shield while he was working on it and now my steering 'snag' when I turn. I may have to take the whole shield out sometime.
Also my mechanic bent the heat shield while he was working on it and now my steering 'snag' when I turn. I may have to take the whole shield out sometime.
Newbie
Joined: Jun 2008
Posts: 23
Likes: 0
2003 C230 KOMPRESSOR SEDAN
Thanks for the advises. I installed my cps this afternoon with out moving the fluid hose. It took me about 10 minutes to take the part off. I did removed the lower part of the connector tube after MAF and I am able to get hand in the little space. My car have the same problem. The car still able to crank but the engine turned for about 2 second and died.
Anybody have any suggestions? Thank you in advance.
Anybody have any suggestions? Thank you in advance.
Junior Member
Joined: Oct 2008
Posts: 17
Likes: 0
From: Toronto
2003 C230 Kompresor, 2010 C300 4M
My car (M271) has a similar problem when it happens the car turns over few seconds runs and then stalls. CPS was replaced and did not solve the problem.
The CPS problem is typically after the car has been running and is up to temperature - my car does it usually when cold.
The CPS problem is typically after the car has been running and is up to temperature - my car does it usually when cold.
