New coil packs, new spark plugs, new aux turbo water pump
Thread Starter
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
New coil packs, new spark plugs, new aux turbo water pump
On the way back from Florida to DC, I threw a CEL and felt a misfire on my S600. Codes were 0300 and a bunch of 03XX. Idled rough. Poor performance. Got home OK.
Replaced both coil packs (they both had almost 50K miles on them) and all 24 sparkplugs. Also replaced the aux turbo water pump with the newer higher capacity version from Mercedes (mine was original 2007). Changed and flushed the ABC oil filter and fluid, and the engine oil filter and oil. Changed the cabin air filters and the engine air filters.
She runs so nice and vibration free now. Idles so smoothly you cannot tell the engine is actually running. And fast on the highway again.
A well maintained Mercedes S Class is the finest automobile in the World.
Replaced both coil packs (they both had almost 50K miles on them) and all 24 sparkplugs. Also replaced the aux turbo water pump with the newer higher capacity version from Mercedes (mine was original 2007). Changed and flushed the ABC oil filter and fluid, and the engine oil filter and oil. Changed the cabin air filters and the engine air filters.
She runs so nice and vibration free now. Idles so smoothly you cannot tell the engine is actually running. And fast on the highway again.
A well maintained Mercedes S Class is the finest automobile in the World.
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Joined: Oct 2021
Posts: 1,195
Likes: 636
From: Iowa
2008 CL550, 2022 EQB 300, 2023 EQS 450 4Matic
On the way back from Florida to DC, I threw a CEL and felt a misfire on my S600. Codes were 0300 and a bunch of 03XX. Idled rough. Poor performance. Got home OK.
Replaced both coil packs (they both had almost 50K miles on them) and all 24 sparkplugs. Also replaced the aux turbo water pump with the newer higher capacity version from Mercedes (mine was original 2007). Changed and flushed the ABC oil filter and fluid, and the engine oil filter and oil. Changed the cabin air filters and the engine air filters.
She runs so nice and vibration free now. Idles so smoothly you cannot tell the engine is actually running. And fast on the highway again.
A well maintained Mercedes S Class is the finest automobile in the World.
Replaced both coil packs (they both had almost 50K miles on them) and all 24 sparkplugs. Also replaced the aux turbo water pump with the newer higher capacity version from Mercedes (mine was original 2007). Changed and flushed the ABC oil filter and fluid, and the engine oil filter and oil. Changed the cabin air filters and the engine air filters.
She runs so nice and vibration free now. Idles so smoothly you cannot tell the engine is actually running. And fast on the highway again.
A well maintained Mercedes S Class is the finest automobile in the World.
Member
Joined: May 2021
Posts: 152
Likes: 67
From: Southern USA
Benz w221 s550
. Oh well........I'll continue to enjoy my LOADED S550 beauty!
Thread Starter
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
I am not sure it really makes any difference. I routinely do a flush and ABC filters every two years. I replace accumulators every four years. Have serviced rear valve block about five years ago. Clean fluid is the best prevention of problems. Maybe other members have a different opinion. And, of course, my wife reminds me regularly; what do I know?
MBWorld Fanatic!
Joined: Oct 2021
Posts: 1,195
Likes: 636
From: Iowa
2008 CL550, 2022 EQB 300, 2023 EQS 450 4Matic
x1000! I have owned ALOOOOOOOOOOOOOOOOT of cars and I will never understand why a used S Class sells for so little on the auction sites but a Porche and BMW and other European cars sell for much higher! It's not like those cars are cheaper to work on much less don't have their own EXPENSIVE problems as well. Oh well........I'll continue to enjoy my LOADED S550 beauty!
. Oh well........I'll continue to enjoy my LOADED S550 beauty!
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Joined: Feb 2012
Posts: 2,634
Likes: 1,219
From: Phoenix
222 S-65
New accumulators deserve a rodeo.
Always with fresh fluid. Give it a fresh filter too.
MBWorld Fanatic!
Joined: Feb 2012
Posts: 2,634
Likes: 1,219
From: Phoenix
222 S-65
On the way back from Florida to DC, I threw a CEL and felt a misfire on my S600. Codes were 0300 and a bunch of 03XX. Idled rough. Poor performance. Got home OK.
Replaced both coil packs (they both had almost 50K miles on them) and all 24 sparkplugs. Also replaced the aux turbo water pump with the newer higher capacity version from Mercedes (mine was original 2007). Changed and flushed the ABC oil filter and fluid, and the engine oil filter and oil. Changed the cabin air filters and the engine air filters.
She runs so nice and vibration free now. Idles so smoothly you cannot tell the engine is actually running. And fast on the highway again.
A well maintained Mercedes S Class is the finest automobile in the World.
Replaced both coil packs (they both had almost 50K miles on them) and all 24 sparkplugs. Also replaced the aux turbo water pump with the newer higher capacity version from Mercedes (mine was original 2007). Changed and flushed the ABC oil filter and fluid, and the engine oil filter and oil. Changed the cabin air filters and the engine air filters.
She runs so nice and vibration free now. Idles so smoothly you cannot tell the engine is actually running. And fast on the highway again.
A well maintained Mercedes S Class is the finest automobile in the World.
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MBWorld Fanatic!
Joined: Oct 2021
Posts: 1,195
Likes: 636
From: Iowa
2008 CL550, 2022 EQB 300, 2023 EQS 450 4Matic
Yah, that's one of the things I thought of, but on the other hand I'll be reopening the system after I've bleed the system. But, I'll go with your sentiment--was leaning that way. I've not messed with component replacement on the ABC system before, so am a bit nervous about it. I did flush it a couple years back w/ filter change.
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Thread Starter
Super Member
Joined: Dec 2018
Posts: 857
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From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
The old coil packs were Clark's. I called him for two new ones and they are on order. He was having problems getting good repairable cores. I also wanted quality and not speed, so he has not delivered them yet. So instead, I bought two OEM coil packs from FCP Euro (lifetime warranty). FCP sent two lefts. The OEM box was marked as a right but had a left in the box. FCP issued a UPS label for the second left. I had my technician order a right coil pack from Mercedes and there was one available locally. I sent back the FCP error yesterday. Clark's remanufactured coil packs are due next week. I plan to use them on the next tune up.
I had previously upgraded the VT to Clark's version 2 (not the Boost Box) so I re-used it. I did buy a Boost Box but it had problems, so it is going back to Clark. I like the idea of the Boost Box and its relocation to a cooler area and plan to upgrade it after Clark determines why it isn't lighting up. I have heard of cable pin problems and that might be the issue.
So other than having a small fortune in extra coil packs in transit, all of which will be refunded in time, I am operational. Clark's stuff is very well engineered and I have had very good success with his products. He just lives in the Land of Fruits and Nuts.....
I had previously upgraded the VT to Clark's version 2 (not the Boost Box) so I re-used it. I did buy a Boost Box but it had problems, so it is going back to Clark. I like the idea of the Boost Box and its relocation to a cooler area and plan to upgrade it after Clark determines why it isn't lighting up. I have heard of cable pin problems and that might be the issue.
So other than having a small fortune in extra coil packs in transit, all of which will be refunded in time, I am operational. Clark's stuff is very well engineered and I have had very good success with his products. He just lives in the Land of Fruits and Nuts.....
MBWorld Fanatic!
Joined: Oct 2021
Posts: 1,195
Likes: 636
From: Iowa
2008 CL550, 2022 EQB 300, 2023 EQS 450 4Matic
Thread Starter
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
That fluid is dirty but still green in color which is good. If you are feeling concerned, you could do another filter replacement, flush and refill. The Pentocin green fluid is a little expensive but tell me what isn't on an S Class!!
I don't like seeing the black residue in the fluid. That usually comes from deteriorating O ring material. Eventually, that stuff clogs up the Valve Blocks which requires a fairly easy but dirty service or a very expensive replacement (I think my rear valve block replacement at the dealer in 2020 cost my warranty $3100.).
I think you should routinely flush and fill every two years. Keep us posted on what you decide to do.
I don't like seeing the black residue in the fluid. That usually comes from deteriorating O ring material. Eventually, that stuff clogs up the Valve Blocks which requires a fairly easy but dirty service or a very expensive replacement (I think my rear valve block replacement at the dealer in 2020 cost my warranty $3100.).
I think you should routinely flush and fill every two years. Keep us posted on what you decide to do.
