C55 Bizarre Problem

lifetimeofwar · 02-20-2010, 11:37 PM

Hey AMG peeps,

My dad and I were driving the C55 tonight, pretty spirited to say the least (frequent 3rd gear pulls to 80ish in S mod). We got home and parked the car for the night, something came up were we needed to go out again, and the car wouldn't start...

Everything turned on (headlights, taillights, dash, etc.) and the car would only crank (trying to turn on). We tried to turn it off then turn it back on again with the same result.

Frustrated, we left the car for about 30minutes then tried again... started right up; however the check engine light was on. We drove it around for a few minutes and the check engine light was still there.

We parked it, left it for about a minute, then restarted it... check engine light's gone

My question is, did the car overheat? Have any of you guys experienced this? Any help would be grateful.

- Shawn

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gt4awd · 02-21-2010, 12:10 AM

More than likely it's the CPS (crank position sensor). It's a common problem...

91RS · 02-21-2010, 03:17 PM

Get that code read ASAP. Get over to an Autozone or something and they should still be able to pull the code from it.

vvcobravv · 02-21-2010, 04:25 PM

Crank Position Sensor definitely...

advans · 02-21-2010, 10:26 PM

yeap, most likely CPS

lifetimeofwar · 02-21-2010, 11:16 PM

Thanks for the reply guys, I know I should search, but is the CPS something that will harm the car? My dad and I push the car all the time and last night was the first time that happened.

gt4awd · 02-21-2010, 11:21 PM

Has this problem repeated at all? If not I would just wait on it, and see if it does. At that point I would replace CPS. Check for pending codes...

lifetimeofwar · 02-21-2010, 11:51 PM

Not since, no... I was reading through some threads, and it seems that the problem will persist getting worse each time; eventually leading to the car shutting off while driving?!?!

lifetimeofwar · 02-22-2010, 04:56 PM

AHHH! The car died on my dad today. We'll take it to our dealership, however I heard you can get the sensor much cheaper elsewhere? I also heard it is a pain to remove the old sensor and install the new one. Does anybody have insight on this?

I was thinking about asking the part/service guy to show me a diagram of the location or something... we shall see....

lifetimeofwar · 02-22-2010, 08:24 PM

HA! Merc of Calabasas wants $500+ for the sensor and labor... I found an Indie shop in the SFV that Will do it for about 200 (sensor and labor). Has anyone heard of MBZ Motors on winnetka and Roscoe?

The annoying this is, I think I'm mechanically inclined enough to swap out the senor myself... if I knew where it was and what tools were needed.

gt4awd · 02-23-2010, 12:24 AM

I could look into it for you if you get no replies from people who have already done the swap. Yes, parts can print you out a diagram, and yes, you can find the sensor cheaper than at the dealership. Autohausaz is one of my main suppliers. I would assume the job isn't too terribly hard, but in a lot of cases special tools are required. You can consider the cost of tools, and all to still be saving money compared to having someone do it for you. Then you will also have the tools if ever needed again... By the way, I've heard numerous complaints about Mercedes of Calabasas when I was searching for my C32! However, all the dealerships tend to be the same, and have terrible customer service. I always find the parts associates to be the only ones friendly, and helpful. At my local dealership I only trust, and get along with three people. Two work in parts, and the attractive receptionist...

Viper98912 · 02-23-2010, 04:40 AM

just diy...

Kompressor21 · 02-23-2010, 10:07 AM

What is the crank position sensor exactly?

lifetimeofwar · 02-24-2010, 01:41 AM

Quote:

Originally Posted by gt4awd

I could look into it for you if you get no replies from people who have already done the swap. Yes, parts can print you out a diagram, and yes, you can find the sensor cheaper than at the dealership. Autohausaz is one of my main suppliers. I would assume the job isn't too terribly hard, but in a lot of cases special tools are required. You can consider the cost of tools, and all to still be saving money compared to having someone do it for you. Then you will also have the tools if ever needed again... By the way, I've heard numerous complaints about Mercedes of Calabasas when I was searching for my C32! However, all the dealerships tend to be the same, and have terrible customer service. I always find the parts associates to be the only ones friendly, and helpful. At my local dealership I only trust, and get along with three people. Two work in parts, and the attractive receptionist...

Thanks for the reply, my dad wants MBZ Motors to do the work. Apparently he knew of MBZ Motors before I told him. Makes my life a little easier, and makes his wallet $200 lighter lol.

Quote:

Originally Posted by Viper98912

just diy...

I would if the 55 was my car, but my dad feels better having the indie shop do the work.

Quote:

Originally Posted by Kompressor21

What is the crank position sensor exactly?

Don't quote me on this, but from what I understand, the sensor will not allow fuel to be distributed until the sensor gets a signal... Might want to do a search of your own, it appears that several C32s and C55 have this problem

02-21-2010, 12:10 AM	#2
gt4awd MBWorld Fanatic! Garage is empty, add now Join Date: Sep 2008 Posts: 1,034 Drives: 2005 Pontiac GTO 6.0 LS2 - Blue	More than likely it's the CPS (crank position sensor). It's a common problem... __________________ SOLD 2002 C32 AMG Sedan [132,000 Miles] Clear Side Markers \| CL Style Grille \| Flat Emblem \| CF Front Lip Spoiler \| CF Rear Diffuser \| CF Trunk Spoiler K&N Air Filters \| NGK IX (2 Step) \| KV-85 \| 185MM EUROCHARGED \| TVT Thermostat \| PSK Belt Wrap Johnson CM30 \| DIY Intercooler Isolation \| 26x7x2 FB H/E \| A/F & PSI Pillar

02-21-2010, 10:26 PM	#5
advans MBWorld Fanatic! Garage is empty, add now Join Date: Jul 2005 Location: New York City Posts: 7,400 Drives: C55 ///AMG, 535xi	yeap, most likely CPS __________________ from c320 coupe to C55 ///AMG ________on e9xpost.com________ from 535xi to ///M3 ZCP ___________________on mbworld.org

02-21-2010, 11:21 PM	#7
gt4awd MBWorld Fanatic! Garage is empty, add now Join Date: Sep 2008 Posts: 1,034 Drives: 2005 Pontiac GTO 6.0 LS2 - Blue	Has this problem repeated at all? If not I would just wait on it, and see if it does. At that point I would replace CPS. Check for pending codes... __________________ SOLD 2002 C32 AMG Sedan [132,000 Miles] Clear Side Markers \| CL Style Grille \| Flat Emblem \| CF Front Lip Spoiler \| CF Rear Diffuser \| CF Trunk Spoiler K&N Air Filters \| NGK IX (2 Step) \| KV-85 \| 185MM EUROCHARGED \| TVT Thermostat \| PSK Belt Wrap Johnson CM30 \| DIY Intercooler Isolation \| 26x7x2 FB H/E \| A/F & PSI Pillar

02-23-2010, 12:24 AM	#11
gt4awd MBWorld Fanatic! Garage is empty, add now Join Date: Sep 2008 Posts: 1,034 Drives: 2005 Pontiac GTO 6.0 LS2 - Blue	I could look into it for you if you get no replies from people who have already done the swap. Yes, parts can print you out a diagram, and yes, you can find the sensor cheaper than at the dealership. Autohausaz is one of my main suppliers. I would assume the job isn't too terribly hard, but in a lot of cases special tools are required. You can consider the cost of tools, and all to still be saving money compared to having someone do it for you. Then you will also have the tools if ever needed again... By the way, I've heard numerous complaints about Mercedes of Calabasas when I was searching for my C32! However, all the dealerships tend to be the same, and have terrible customer service. I always find the parts associates to be the only ones friendly, and helpful. At my local dealership I only trust, and get along with three people. Two work in parts, and the attractive receptionist... __________________ SOLD 2002 C32 AMG Sedan [132,000 Miles] Clear Side Markers \| CL Style Grille \| Flat Emblem \| CF Front Lip Spoiler \| CF Rear Diffuser \| CF Trunk Spoiler K&N Air Filters \| NGK IX (2 Step) \| KV-85 \| 185MM EUROCHARGED \| TVT Thermostat \| PSK Belt Wrap Johnson CM30 \| DIY Intercooler Isolation \| 26x7x2 FB H/E \| A/F & PSI Pillar Last edited by gt4awd; 02-23-2010 at 12:28 AM.

02-23-2010, 04:40 AM	#12
Viper98912 MBWorld Fanatic! Garage is empty, add now Join Date: Jun 2009 Location: Atlanta, GA Posts: 1,527 Drives: C55 AMG, Viper GTS	just diy... __________________ '05 C55 AMG \| Diamond Black \| Black Nappa

02-21-2010, 03:17 PM	#3
91RS MBWorld Fanatic! Garage is empty, add now Join Date: Mar 2009 Location: GA Posts: 1,730 Drives: 2005 C55, 2007 Trailblazer SS	Get that code read ASAP. Get over to an Autozone or something and they should still be able to pull the code from it.

02-21-2010, 04:25 PM	#4
vvcobravv Junior Member Garage is empty, add now Join Date: Jan 2010 Posts: 33 Drives: 2006 C55 AMG	Crank Position Sensor definitely...

02-21-2010, 11:16 PM	#6
lifetimeofwar Newbie Garage is empty, add now Join Date: Jun 2007 Location: Southern Cali Posts: 12 Drives: 05 Acura TL and 05 C55	Thanks for the reply guys, I know I should search, but is the CPS something that will harm the car? My dad and I push the car all the time and last night was the first time that happened.

02-21-2010, 11:51 PM	#8
lifetimeofwar Newbie Garage is empty, add now Join Date: Jun 2007 Location: Southern Cali Posts: 12 Drives: 05 Acura TL and 05 C55	Not since, no... I was reading through some threads, and it seems that the problem will persist getting worse each time; eventually leading to the car shutting off while driving?!?!

02-22-2010, 04:56 PM	#9
lifetimeofwar Newbie Garage is empty, add now Join Date: Jun 2007 Location: Southern Cali Posts: 12 Drives: 05 Acura TL and 05 C55	AHHH! The car died on my dad today. We'll take it to our dealership, however I heard you can get the sensor much cheaper elsewhere? I also heard it is a pain to remove the old sensor and install the new one. Does anybody have insight on this? I was thinking about asking the part/service guy to show me a diagram of the location or something... we shall see....

02-22-2010, 08:24 PM	#10
lifetimeofwar Newbie Garage is empty, add now Join Date: Jun 2007 Location: Southern Cali Posts: 12 Drives: 05 Acura TL and 05 C55	HA! Merc of Calabasas wants $500+ for the sensor and labor... I found an Indie shop in the SFV that Will do it for about 200 (sensor and labor). Has anyone heard of MBZ Motors on winnetka and Roscoe? The annoying this is, I think I'm mechanically inclined enough to swap out the senor myself... if I knew where it was and what tools were needed.

02-23-2010, 10:07 AM	#13
Kompressor21 Senior Member Garage is empty, add now Join Date: Apr 2008 Location: Fort lauderdale, Florida Posts: 252 Drives: 2005 Red C55 AMG and 2009 Harley davidson NIghtster SIlver and black	What is the crank position sensor exactly? __________________ Secondary cats and Resonator Deleted and K&N Air Filters. Carbon fiber front lip,Black grille,Black taillights. 13.04 1/4 mile at 107 mph before secondary cats were deleted. http://www.youtube.com/watch?v=Fs-gWG3TnM4 1/4 mile run

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02-24-2010, 01:41 AM