rough idle- changing engine coolant? radiator? transmission fluid? brake fluid?
Thread Starter
Senior Member
Joined: Dec 2014
Posts: 329
Likes: 1
porsche
rough idle- changing engine coolant? radiator? transmission fluid? brake fluid?
for a used vehicle purchase would you change either of the following on an e55 2003?
PPI said could be possible rough idle issues.... would it be best to:
1)changing engine coolant?
2)radiator? may still be using the stupid old valeo problematic radiator
3) transmission fluid? head not to do this until 150000 miles
4) brake fluid?
any other "definite" fixes you would do if you just bought an e55 2003?
PPI said could be possible rough idle issues.... would it be best to:
1)changing engine coolant?
2)radiator? may still be using the stupid old valeo problematic radiator
3) transmission fluid? head not to do this until 150000 miles
4) brake fluid?
any other "definite" fixes you would do if you just bought an e55 2003?
Senior Member
Joined: Dec 2014
Posts: 271
Likes: 4
From: Auckland, New Zealand
2004 E55 AMG
for a used vehicle purchase would you change either of the following on an e55 2003?
PPI said could be possible rough idle issues.... would it be best to:
1)changing engine coolant?
2)radiator? may still be using the stupid old valeo problematic radiator
3) transmission fluid? head not to do this until 150000 miles
4) brake fluid?
any other "definite" fixes you would do if you just bought an e55 2003?
PPI said could be possible rough idle issues.... would it be best to:
1)changing engine coolant?
2)radiator? may still be using the stupid old valeo problematic radiator
3) transmission fluid? head not to do this until 150000 miles
4) brake fluid?
any other "definite" fixes you would do if you just bought an e55 2003?
Plugs
Leads
Coils
Vacuum Leaks
Senior Member
Joined: Dec 2014
Posts: 271
Likes: 4
From: Auckland, New Zealand
2004 E55 AMG
If you have just purchased the vehicle, I would change all fluids and basic parts, mainly for piece of mind so that I knew those common maintenance parts were ok, Trans, Diff, SC, Plugs, Leads, Coils, Oil, Oil Filter, Air Filters
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,835
Likes: 12
From: The Granite State
.
If the car hasn't had regular maintenance the only thing holding your transmission together is the friction material floating around in the old fluid. If you flush the tranny with fresh fluid you will probably end up doing a transmission rebuild a few weeks later.
I've seen it happen several times to people on this forum. They claimed the service tech did the flush wrong, but in reality the clutch packs were just completely worn out.
-G
MBWorld Fanatic!
Joined: Dec 2008
Posts: 2,396
Likes: 38
From: Bay Area, CA
2007 SL55 AMG
More than likely, the rough idle is from your plugs/ wires. As mentioned above you should change all the fluids after purchasing. For transmission, a pan drop/ filter change is recommended. Do not flush with a machine.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
