My SL65 is broken
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Joined: Sep 2004
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From: Dallas
SL65
My SL65 is broken
Back in Dec my SL65 was in an accident thanks to another idiot who didn't know how to drive. It took a considerable amount of time to repair and I just got it back. The damage was on the front end and required replacing just about everything up to the front of the engine including some parts on the engine. There was some minor damage to the pulleys on the engine, the oil dipstick tube was damaged, one of the turbo control modules on top was damaged. Replacing the oil dipstick required removal of the engine and the turbo on one side due to the way it's routed. All in all total repairs were $40k. I had great concern about the car running right when all this was done. It turns out my concerns were well founded.
Fortunatly for me I had the car dynod before the accident where it put down a healthy 528 at the wheels. After I got it back I ran it over to the same dyno and had it redone. The results were sickening. 456 top and it pulled timing at the end of the very first run. 2nd run timing was pulled the whole time and it could only muster 440. The A/F also looked strange and it's running very lean which we all know is odd for a stock car. There's also backfiring when letting off the gas on occassion. I took it back to the dealership which had done the repairs along with the dyno graphs and told them this car is not fixed and there is something quite wrong with it.
Anyone have any ideas that might be causing all of these problems and what course of action I should take?
Dyno graph. Original run is in green. Post repairs red and blue.
Fortunatly for me I had the car dynod before the accident where it put down a healthy 528 at the wheels. After I got it back I ran it over to the same dyno and had it redone. The results were sickening. 456 top and it pulled timing at the end of the very first run. 2nd run timing was pulled the whole time and it could only muster 440. The A/F also looked strange and it's running very lean which we all know is odd for a stock car. There's also backfiring when letting off the gas on occassion. I took it back to the dealership which had done the repairs along with the dyno graphs and told them this car is not fixed and there is something quite wrong with it.
Anyone have any ideas that might be causing all of these problems and what course of action I should take?
Dyno graph. Original run is in green. Post repairs red and blue.
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From: Tampa, Florida
06 SL65 / 97 993tt /11 Suburban/ 2012 GTR (AMG è la mia Famiglia la Bestia è la mia protezione)
Damn...I hope you find out what's causing the problems. Maybe Sunil or Vadim may have some insight...hopefull you don't have to go through another tear down to find out the cause.
Good luck brother...
Good luck brother...
Member
Joined: Jun 2007
Posts: 192
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From: IL.
ML320cdi, F250dsl.
Those symptoms are common with ic pump failure or air in intercoolers. Have them test the low temp cooling pump and make sure they bleed the system properly.
Not all codes in the ecu will set a chack engine light. Have a scanner hooked up and see if there are any codes that are pending.
Not all codes in the ecu will set a chack engine light. Have a scanner hooked up and see if there are any codes that are pending.
Senior Member
Joined: Nov 2008
Posts: 368
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From: IL
2009 E63 AMG
that sucks. I was having nightmares about the exact same thing with my car. If that ever happens it will go bye bye and I will get another. I just can't handle repaired cars. They never get the paint as good as new. Sorry man.
Thread Starter
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Joined: Sep 2004
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From: Dallas
SL65
Those symptoms are common with ic pump failure or air in intercoolers. Have them test the low temp cooling pump and make sure they bleed the system properly.
Not all codes in the ecu will set a chack engine light. Have a scanner hooked up and see if there are any codes that are pending.
Not all codes in the ecu will set a chack engine light. Have a scanner hooked up and see if there are any codes that are pending.
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Member
Joined: Jun 2007
Posts: 192
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From: IL.
ML320cdi, F250dsl.
The backfireing is common with pump failure. Its because ECU pulls timing. The lean condition is a little odd. What was the a/f at light load before they went WOT on dyno, and what was the a/f at WOT?
Thread Starter
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From: Dallas
SL65
I think I got this figured out. I did some data logging today. It's 46 degrees F outside. My IATs are idling at 86-88 degrees celsius(C). 
After a run they get into the 100+ C. Anyone know what a properly running 65's IATs should look like?
I compared that to my old SL55 data logs on a run down the dragstrip on a 75 degree F day and IATs are idling at 41C and max of 72C after a run down the strip and they recover to normal after about 15 seconds. On a nice cool day like today back in 2-08 my SL55 IATs were idle at 30C and maxing at 52C.
After a run they get into the 100+ C. Anyone know what a properly running 65's IATs should look like?I compared that to my old SL55 data logs on a run down the dragstrip on a 75 degree F day and IATs are idling at 41C and max of 72C after a run down the strip and they recover to normal after about 15 seconds. On a nice cool day like today back in 2-08 my SL55 IATs were idle at 30C and maxing at 52C.
Member
Joined: Jun 2007
Posts: 192
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From: IL.
ML320cdi, F250dsl.
I think I got this figured out. I did some data logging today. It's 46 degrees F outside. My IATs are idling at 86-88 degrees celsius(C). After a run they get into the 100+ C. Anyone know what a properly running 65's IATs should look like?
I compared that to my old SL55 data logs on a run down the dragstrip on a 75 degree F day and IATs are idling at 41C and max of 72C after a run down the strip and they recover to normal after about 15 seconds. On a nice cool day like today back in 2-08 my SL55 IATs were idle at 30C and maxing at 52C.
After a run they get into the 100+ C. Anyone know what a properly running 65's IATs should look like?I compared that to my old SL55 data logs on a run down the dragstrip on a 75 degree F day and IATs are idling at 41C and max of 72C after a run down the strip and they recover to normal after about 15 seconds. On a nice cool day like today back in 2-08 my SL55 IATs were idle at 30C and maxing at 52C.
Thread Starter
MBWorld Fanatic!
Joined: Sep 2004
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From: Dallas
SL65
Thanks for the info. Even putzing around at cruising speed it didn't go below 81C. I think it's pretty safe to say my IC system doesn't work.
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From: Long Island, NY
W220 S65 AMG
Good luck let us know!
Super Member
Joined: Mar 2009
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From: Los Angeles, CA
E63 AMG & CLK350
I fought long and hard with the dealer and my insurance company to have the car fixed correctly. I even had a second look done by another BMW dealer to make sure nothing had been overlooked. It took a total of almost 5 months and even after all that, I was never fully satisfied with the work that was done and I never felt the same about my car again. From there, it turned into a love/hate relationship.
If you love your car and are willing to go through any additional necessary repairs to get it running back up to par, then keep it. Otherwise, I would probably sell it or trade it in for another.
Good luck! The SL65 is certainly a beast of a machine.
Member
Joined: Jun 2005
Posts: 187
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From: Bay Area, CA
05 E55, 07 SL65, 06 S4
What data logger are you using? A few days ago I did some data logging on my SL65 with an Autotap interface - I can email you the file if interested.
BTW, I observed the same temperature range you did in idle. I think it's simply the small air volume that gets heated by the tubing, perfectly normal as the IAT drops immediately as the throttle is opened.
BTW, I observed the same temperature range you did in idle. I think it's simply the small air volume that gets heated by the tubing, perfectly normal as the IAT drops immediately as the throttle is opened.
Thread Starter
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Joined: Sep 2004
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From: Dallas
SL65
What data logger are you using? A few days ago I did some data logging on my SL65 with an Autotap interface - I can email you the file if interested.
BTW, I observed the same temperature range you did in idle. I think it's simply the small air volume that gets heated by the tubing, perfectly normal as the IAT drops immediately as the throttle is opened.
BTW, I observed the same temperature range you did in idle. I think it's simply the small air volume that gets heated by the tubing, perfectly normal as the IAT drops immediately as the throttle is opened.
Member
Joined: Oct 2006
Posts: 175
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From: Dallas
08 SL55, 07 E63, 07 S550
Sorry to hear that. I got into an accident in June of last year and it too needed an entired new front end. The total damage came out to be a 29k. I wonder if it had any affects to my car?
Senior Member
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From: Atlanta
SL600 (1000 hp), Cayenne S, 996TT EVO GT750, F430 Spyder,A real Ford GT, 08 Gallardo Spyder
Pulled some tech stuff on the sl65 (2005-2007) and here is deal on the IAT. Boost/timing are affected as soon as IAT hits 70C/158f. Boost is purged from 5-95% starting at IATs above 70c with 95% purge once IAT reaches 105c. If u need all I have, pm me.
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From: Southern, CA.
V12-Biturbo
Thread Starter
MBWorld Fanatic!
Joined: Sep 2004
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From: Dallas
SL65
I sent you a PM. If you could get that to me I would greatly appreciate it.
Thread Starter
MBWorld Fanatic!
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From: Dallas
SL65
Piece of junk. Still not running right. Though it's better than it was before it's still not near where it was. It's still pulling timing or dropping boost mid run. I data logged the dyno pulls this time. IATs are starting right at 70C, briefy dropping to low 60's before jumping up into the high 70's before it's done. Not exactly a hot day out either.
Is there any other things I should have them look at? They already replaced the IC pump. It seems like the IC pump isn't running unless it's under load. At idle with 2 fans on it the IAT was in the 70s and inching higher. It wasn't until it got going on the dyno that it briefly dropped.
Is there any other things I should have them look at? They already replaced the IC pump. It seems like the IC pump isn't running unless it's under load. At idle with 2 fans on it the IAT was in the 70s and inching higher. It wasn't until it got going on the dyno that it briefly dropped.
