600 Owners - Spark Plug Replacement Interval
Thread Starter
Super Member
Joined: Jun 2004
Posts: 731
Likes: 23
From: 30-A
2024 AMG G63, 2023 Bentley GTC Speed
600 Owners - Spark Plug Replacement Interval
Hi all,
How many miles are spark plugs typically replaced on a V12 engine (02 CL600).
Thanks in advance,
v8+4
How many miles are spark plugs typically replaced on a V12 engine (02 CL600).
Thanks in advance,
v8+4
Thread Starter
Super Member
Joined: Jun 2004
Posts: 731
Likes: 23
From: 30-A
2024 AMG G63, 2023 Bentley GTC Speed
Thanks, fool 
I was told 60k or 5 years by the dealer.
Car is in for a B service. I was quoted around $600.00, and now the bill is coming in at $2500.00 (just maintenance, no other repairs needed).
Dealer said spark plugs were due, but I would have thought they were good for 100k. Car is an 02 CL600 with 40k miles.
I guess thats why they call it the STEALership.
v8+4
I was told 60k or 5 years by the dealer.
Car is in for a B service. I was quoted around $600.00, and now the bill is coming in at $2500.00 (just maintenance, no other repairs needed).
Dealer said spark plugs were due, but I would have thought they were good for 100k. Car is an 02 CL600 with 40k miles.
I guess thats why they call it the STEALership.
v8+4
Junior Member
Joined: Aug 2006
Posts: 54
Likes: 0
Thanks, fool
I was told 60k or 5 years by the dealer.
Car is in for a B service. I was quoted around $600.00, and now the bill is coming in at $2500.00 (just maintenance, no other repairs needed).
Dealer said spark plugs were due, but I would have thought they were good for 100k. Car is an 02 CL600 with 40k miles.
I guess thats why they call it the STEALership.
v8+4
I was told 60k or 5 years by the dealer.
Car is in for a B service. I was quoted around $600.00, and now the bill is coming in at $2500.00 (just maintenance, no other repairs needed).
Dealer said spark plugs were due, but I would have thought they were good for 100k. Car is an 02 CL600 with 40k miles.
I guess thats why they call it the STEALership.
v8+4
That is the highest price I have seen on this form for the job you have indicated........... Bad Dealership...
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Joined: Sep 2007
Posts: 17
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s600
Senior Member
Joined: Sep 2007
Posts: 368
Likes: 11
From: Iowa
2019 S450
First take off the air ducts and the air cleaner.
Remove the wires to the coil paks.
remove the coil paks by removig 4 bolts. (special Torque head M12 but a 8 mm socket will work..
Then pull straight away from engine.
Pull all the red rubber boots off the plugs.
5/8 spark plug socket and remove the plugs.
install the new ones with anti seize compound on the threads.
Install all new boots with small amount of Silicone dielectric grease on each end.
Carefully slide the coil paks back on and reinstall all the bolts but be careful not to strip them out.
Done
Remove the wires to the coil paks.
remove the coil paks by removig 4 bolts. (special Torque head M12 but a 8 mm socket will work..
Then pull straight away from engine.
Pull all the red rubber boots off the plugs.
5/8 spark plug socket and remove the plugs.
install the new ones with anti seize compound on the threads.
Install all new boots with small amount of Silicone dielectric grease on each end.
Carefully slide the coil paks back on and reinstall all the bolts but be careful not to strip them out.
Done
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Junior Member
Joined: Aug 2006
Posts: 54
Likes: 0
First take off the air ducts and the air cleaner.
Remove the wires to the coil paks.
remove the coil paks by removig 4 bolts. (special Torque head M12 but a 8 mm socket will work..
Then pull straight away from engine.
Pull all the red rubber boots off the plugs.
5/8 spark plug socket and remove the plugs.
install the new ones with anti seize compound on the threads.
Install all new boots with small amount of Silicone dielectric grease on each end.
Carefully slide the coil paks back on and reinstall all the bolts but be careful not to strip them out.
Done
Remove the wires to the coil paks.
remove the coil paks by removig 4 bolts. (special Torque head M12 but a 8 mm socket will work..
Then pull straight away from engine.
Pull all the red rubber boots off the plugs.
5/8 spark plug socket and remove the plugs.
install the new ones with anti seize compound on the threads.
Install all new boots with small amount of Silicone dielectric grease on each end.
Carefully slide the coil paks back on and reinstall all the bolts but be careful not to strip them out.
Done
