SL55/63/65/R230 AMG: Does a failed IC pump shut down the S/C?
10-16-2013, 09:25 PM
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2004 SL55 AMG Kompressor
Does a failed IC pump shut down the S/C?
Driving home today, laid into the throttle, and didn't get the usual head snap. 
took it for a run down a country road, and pretty sure my screws aren't spinning.....she's sluggish and has a sad exhaust note...So, how do I go about diagnosing? 12v straight to ic pump? Does the s/c clutch ever fail?
This is one thing after another! Good thing winter is almost here....gives me time between working and sledding to fix the ole gal!
took it for a run down a country road, and pretty sure my screws aren't spinning.....she's sluggish and has a sad exhaust note...So, how do I go about diagnosing? 12v straight to ic pump? Does the s/c clutch ever fail?This is one thing after another!
Good thing winter is almost here....gives me time between working and sledding to fix the ole gal!
10-16-2013, 09:42 PM
#2
Driving home today, laid into the throttle, and didn't get the usual head snap. took it for a run down a country road, and pretty sure my screws aren't spinning.....she's sluggish and has a sad exhaust note...So, how do I go about diagnosing? 12v straight to ic pump? Does the s/c clutch ever fail?
This is one thing after another! Good thing winter is almost here....gives me time between working and sledding to fix the ole gal!
took it for a run down a country road, and pretty sure my screws aren't spinning.....she's sluggish and has a sad exhaust note...So, how do I go about diagnosing? 12v straight to ic pump? Does the s/c clutch ever fail?This is one thing after another!
Good thing winter is almost here....gives me time between working and sledding to fix the ole gal!I don't know about the SL 55 , but it kills the power on the C32. Get a Johnson or Meziere, problem solved!
10-17-2013, 02:13 PM
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2004 SL55 AMG Kompressor
gotta be the pump car was her usual self this morning on the cold commute to work (2*C).
Anyone know where to get the pump cheapest? Ebay has Bosch pumps for ~$120USD, I'm in Canada...
Anyone know where to get the pump cheapest? Ebay has Bosch pumps for ~$120USD, I'm in Canada...
10-17-2013, 03:29 PM
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Just bought this for my V12tt. Not sure you can find them much cheaper...
11-03-2013, 10:53 PM
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2004 SL55 AMG Kompressor
couldn't find a 'how to' on this, alldata isn't much help....Where is this lil thing? I'm going to pop the passenger side wheel off tomorrow, and pop out the fender liner....will i see it?
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11-04-2013, 09:50 PM
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2004 SL55 AMG Kompressor
Jeez, that was quicker than changing the oil. pop off the covers, vise grip the hoses, zip off the 4 nuts, bam!
Sadly, the old pump still works, put 12v to her, and it works fine. What else should \i check before taking her out?
When i assumed it was the pump, she would pull hard, then you could feel the s/c shut off...then it'd kick in....then out....then stay out....suggestions?
Sadly, the old pump still works, put 12v to her, and it works fine. What else should \i check before taking her out?
When i assumed it was the pump, she would pull hard, then you could feel the s/c shut off...then it'd kick in....then out....then stay out....suggestions?
11-05-2013, 07:26 PM
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2004 SL55
Fuse is F51 and relay is R. They are under the passenger rear storage compartment. My relay had high contact resistance, 1.5 Ohms. I opened up the unit and burnished the contacts with a special tool. Contact resistance was good to go after that, .02 Ohms.
My original pump died after 12K miles. The brushes were totally worn out. I have a full time data logger called a UltraGauge. Good way to know when the coolant temp is out of whack.
My original pump died after 12K miles. The brushes were totally worn out. I have a full time data logger called a UltraGauge. Good way to know when the coolant temp is out of whack.
Last edited by busaboy; 11-05-2013 at 07:32 PM.
11-05-2013, 07:44 PM
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2004 SL55
11-05-2013, 08:02 PM
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2004 SL55 AMG Kompressor
I'm certain my IAT's are NOT the problem, at 20*C i should be making huge power. I'll double check voltage to the pump this eve, but I think it may be a relay for the S/C clutch itself...anyone have a diagram for that?
