SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Coil pack problem after front end collision!

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Old May 26, 2018 | 03:46 PM
  #1  
horrible's Avatar
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From: I'm Back in the US of A !
2005 SL 600,2002 M3,1993 Vette!
Coil pack problem after front end collision!

I could not avoid an full retread belt from an 18 wheeler that a van ran over in front of me on the Interstate.
I pulled over and waited for the police for about one hour with the car running and A/C on.
After the police report I drove the car to a better place for the flatbed to pick it up.
The car was running fine! Damage was to the front clip.

After waiting for a month for MB to repair the front clip I went to pick it up yesterday and it had a check engine light on.

I told the Service manager it didn’t have a check engine light on when it went on the flat bed.

My question is is it possible for a violent shock to the car that a coil pack would go bad?

That is what MB just told me on the phone.
The light shows a coil pack problem.

It is a 2005 SL600 with 27,383 mi

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Old May 26, 2018 | 06:08 PM
  #2  
FxFormat's Avatar
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Joined: Mar 2018
Posts: 541
Likes: 93
From: Northern VA
SL 600
Originally Posted by horrible
I could not avoid an full retread belt from an 18 wheeler that a van ran over in front of me on the Interstate.
I pulled over and waited for the police for about one hour with the car running and A/C on.
After the police report I drove the car to a better place for the flatbed to pick it up.
The car was running fine! Damage was to the front clip.

After waiting for a month for MB to repair the front clip I went to pick it up yesterday and it had a check engine light on.

I told the Service manager it didn’t have a check engine light on when it went on the flat bed.

My question is is it possible for a violent shock to the car that a coil pack would go bad?

That is what MB just told me on the phone.
The light shows a coil pack problem.

It is a 2005 SL600 with 27,383 mi


I don't see how a front end collision would affect the coilpacks, unless something got pushed back far enough to tear some wires/connectors. Or it could just be the luck of the draw that the coil went bad at the time it was with MB.
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Old May 26, 2018 | 06:33 PM
  #3  
ItalianJoe1's Avatar
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Joined: May 2015
Posts: 4,037
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From: Miami, FL
2003 CL 600
Coil went bad with age, just a coincidence. Do you normally drive the car slowly? Someone probably drove the car and stepped down enough to cause the coil pack to not fire properly, and set a code. If you have a weak pack, you can drive like a grandpa and be fine for years, but if you go full throttle it will drop out and set faults right away.
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Old May 27, 2018 | 09:23 PM
  #4  
horrible's Avatar
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Joined: Oct 2010
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From: I'm Back in the US of A !
2005 SL 600,2002 M3,1993 Vette!
Coil pack problem

I never drove it like a Grandpa even though I am one.
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