CL500 Lumpy on Tickover
Thread Starter
Junior Member
Joined: Oct 2006
Posts: 25
Likes: 0
From: England
CL500 Sport
CL500 Lumpy on Tickover
Hi people!
Any help on this subject would be appreciated, here goes.
I have a 2002 CL500, it's got 63k mileage.
I have recently had a B Service changed the oil and all the filters; fuel, air, oil. However I've got a lumpy tickover. The needle doesn't noticeably move (it stays at 500) but I get light vibrations in the seats. It doesn't do it at speed or a least I can tell. I suspected misfiring so asked my local specialist to diagnose the fault on his WINSTAR (3rd party version of Star Diagnostics).
The system gave a real time read out on the cylinders and also showed some stored misfiring errors on 3 of the cylinders.
I have since changed the coils, leads and plugs. But it's hardly improved.
What now? Fuel pump? Injectors?
Any help or experience in this matter would appreciate.
Any help on this subject would be appreciated, here goes.
I have a 2002 CL500, it's got 63k mileage.
I have recently had a B Service changed the oil and all the filters; fuel, air, oil. However I've got a lumpy tickover. The needle doesn't noticeably move (it stays at 500) but I get light vibrations in the seats. It doesn't do it at speed or a least I can tell. I suspected misfiring so asked my local specialist to diagnose the fault on his WINSTAR (3rd party version of Star Diagnostics).
The system gave a real time read out on the cylinders and also showed some stored misfiring errors on 3 of the cylinders.
I have since changed the coils, leads and plugs. But it's hardly improved.
What now? Fuel pump? Injectors?
Any help or experience in this matter would appreciate.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 4,278
Likes: 379
From: San Jose area
'19 E63S sedan
Hi people!
Any help on this subject would be appreciated, here goes.
I have a 2002 CL500, it's got 63k mileage.
I have recently had a B Service changed the oil and all the filters; fuel, air, oil. However I've got a lumpy tickover. The needle doesn't noticeably move (it stays at 500) but I get light vibrations in the seats. It doesn't do it at speed or a least I can tell. I suspected misfiring so asked my local specialist to diagnose the fault on his WINSTAR (3rd party version of Star Diagnostics).
The system gave a real time read out on the cylinders and also showed some stored misfiring errors on 3 of the cylinders.
I have since changed the coils, leads and plugs. But it's hardly improved.
What now? Fuel pump? Injectors?
Any help or experience in this matter would appreciate.
Any help on this subject would be appreciated, here goes.
I have a 2002 CL500, it's got 63k mileage.
I have recently had a B Service changed the oil and all the filters; fuel, air, oil. However I've got a lumpy tickover. The needle doesn't noticeably move (it stays at 500) but I get light vibrations in the seats. It doesn't do it at speed or a least I can tell. I suspected misfiring so asked my local specialist to diagnose the fault on his WINSTAR (3rd party version of Star Diagnostics).
The system gave a real time read out on the cylinders and also showed some stored misfiring errors on 3 of the cylinders.
I have since changed the coils, leads and plugs. But it's hardly improved.
What now? Fuel pump? Injectors?
Any help or experience in this matter would appreciate.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 4,278
Likes: 379
From: San Jose area
'19 E63S sedan
BTW, this is an example of why the dealer is oftentimes worth the extra expense over an independent. If it does turn out to be mounts, it would have been the first thing the dealer would have checked.
Thread Starter
Junior Member
Joined: Oct 2006
Posts: 25
Likes: 0
From: England
CL500 Sport
How many?
Thanks for the advice. I'm going to order the engine mounts and get the specialist to fit them, if it doesn't make a difference at least I know they won't fail later.
How many will I need ... is this the right one -
http://cgi.ebay.com/ebaymotors/ws/eB...link:middle:us
Thanks
How many will I need ... is this the right one -
http://cgi.ebay.com/ebaymotors/ws/eB...link:middle:us
Thanks
MBWorld Fanatic!
Joined: Mar 2006
Posts: 4,278
Likes: 379
From: San Jose area
'19 E63S sedan
Thanks for the advice. I'm going to order the engine mounts and get the specialist to fit them, if it doesn't make a difference at least I know they won't fail later.
How many will I need ... is this the right one -
http://cgi.ebay.com/ebaymotors/ws/eB...link:middle:us
Thanks
How many will I need ... is this the right one -
http://cgi.ebay.com/ebaymotors/ws/eB...link:middle:us
Thanks
MBWorld Fanatic!
Joined: Nov 2004
Posts: 1,121
Likes: 87
From: West Plam Beach, FL
'16 S550 Coupe, '11 Lexus LS460, '02 CL500 (SOLD)
I would definitely have the car check to determine the problem prior to replacing any more parts. As you are beginning to see, you can spend some serious money and still have the problem.
