PLEASE HELP! Still have SC issues...
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 45
Likes: 0
06 Elise (total loss)
PLEASE HELP! Still have SC issues...
Replaced BOSCH with Johnson CM30 pump, replaced IAT sensor, replaced fuses, bled coolant, I have no clue where the relay is in front of the SAM.
and my SC still cuts out.
I removed the pannel in the wheel well and can feel the pump pumping when the car is running. Is there a chance this pump is not pumping at full potential becuase of a relay issue?
Stock pulley, stock HE...
I'm lost for where to go next! Should I hook up an OBD2 and check intake temps? What are normal readings on these cars?
What else could be the problem?
SC runs when I first start the car, pulls until it gets mildly hot then cuts out, if I cruise without throttle it cuts back in briefly then cuts back out which leads me to believe it's either a problem with my computers ability to properly read IAT's or my sytem is not cooling properly.
Any tests or suggestions to narrow down this issue?
Is there anything else that could be causing this problem?
and my SC still cuts out.
I removed the pannel in the wheel well and can feel the pump pumping when the car is running. Is there a chance this pump is not pumping at full potential becuase of a relay issue?
Stock pulley, stock HE...
I'm lost for where to go next! Should I hook up an OBD2 and check intake temps? What are normal readings on these cars?
What else could be the problem?
SC runs when I first start the car, pulls until it gets mildly hot then cuts out, if I cruise without throttle it cuts back in briefly then cuts back out which leads me to believe it's either a problem with my computers ability to properly read IAT's or my sytem is not cooling properly.
Any tests or suggestions to narrow down this issue?
Is there anything else that could be causing this problem?
Member
Joined: Aug 2009
Posts: 180
Likes: 0
From: Sydney, Australia
2001 C32 AMG
The issue you described second last sentence is 100% what I have... but I haven't put in a CM30 yet (have ordered one)..
I know when I hooked up to the computer to check errors with my mechanic the other day he said there were some IAT warnings and so I'm going to replace the sensors .. but you seem to have already done that so I'm not help!
Hope you find the answer's you're looking for..
I know when I hooked up to the computer to check errors with my mechanic the other day he said there were some IAT warnings and so I'm going to replace the sensors .. but you seem to have already done that so I'm not help!
Hope you find the answer's you're looking for..
MBWorld Fanatic!
Joined: Sep 2008
Posts: 1,034
Likes: 1
2005 Pontiac GTO 6.0 LS2 - Blue
If the new pump is running the relay should be good. So that takes the pump, relay, IAT sensor, fuses, and air in line out of the question. Not sure what's left to check after that, but hopefully someone will know. Quick question. What is the average temperature in your area at this time?
MBWorld Fanatic!
Joined: Sep 2008
Posts: 1,034
Likes: 1
2005 Pontiac GTO 6.0 LS2 - Blue
One thing that comes to mind is a problem with the electromagnetic clutch on the supercharger... You can verify this by monitoring the IAT, and if the supercharger is disengaged below 195F you have a problem with the clutch
Last edited by gt4awd; Nov 4, 2009 at 02:03 AM.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
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
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
i had a leaky intercooler and i didn't have my sc cut out. The coolant from my resevoir would get lower and i could see white steam coming from the bottom of the engine when i drive for a while and let it sit.
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
you can have codes without throwing a cel. With star you can see all the mercedes codes and history. Usually a cheap obdii reader can still see most of the codes.
Super Member
Joined: Jan 2009
Posts: 668
Likes: 17
From: NY
'03C32 Obsidian Black, '76Toyota Celica GT TRD, '12R350 4matic Arctic White, '06 ML 350 arctic white
I can't recall what thread it was but, it was a loose connection on the sc clutch. which caused the sc to disengage despite iat's being normal...if I find the thread I'll post back GL
OBD II SCANNER http://shop.ebay.com/i.html?_kw=obd&...rcedes&_ckw=II saw on ebay hope this helps.
OBD II SCANNER http://shop.ebay.com/i.html?_kw=obd&...rcedes&_ckw=II saw on ebay hope this helps.
Last edited by W203Ramos; Nov 4, 2009 at 08:56 PM.
MBWorld Fanatic!
Joined: Mar 2007
Posts: 1,948
Likes: 3
From: Houston, TX
C32/C55 AMG
I'm about to do all the things that you have done. I'm worried I'm going to have the same out come. I did recently change my supercharger bearing, but I think I was having the problem before that. So I'm not sure if the pulley could be affecting the clutch.
