Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-14-2004, 02:20 PM
Registered User
 
Join Date: Oct 2004
Location: Houston
Posts: 3
Engine knocks during cold start.

I have a CLK430 with 80000 miles on it. When I start in the morning I heard some knocking ( sounds like valves or head noise). But the noise will completely goes away after five minutes or when the engine is hot. I brought it to the MB dealership and they said that it's carbon buildup that cause the knocking. They said they need to remove the head to decarbonize it. I don't know if it's a good thing to do or is that the cause of the problem. Should I do any more reasearch before decarbonize it? Also, does 1999 CLK430 have a 8/80 warranty on the catalytic converter? Thanks.
Reply With Quote
  #2  
Old 10-14-2004, 02:30 PM
Registered User
 
Join Date: Oct 2003
Posts: 140
Strange

Hi I have the same car with approx the same Miles ( 170.000 Km) mine do the same sometimes just when cold and for few seconds (max 15s).
Never when hot, in my opinion are just the hidraulic lifters and i am not sure about carbon in heads.........if the car was mine i never take down heads for this if i ma not sure........this is a big job.
With the new fresh oil the situation is really better .
Alberto
Reply With Quote
  #3  
Old 10-14-2004, 02:49 PM
Registered User
 
Join Date: Sep 2004
Location: Seattle
Posts: 1,931
If it is carbon buildup then you should be able to see that with a borescope. I got one shown on www.provision100.com and it is pretty good. The 45 degree mirror lets you see to the side and I could see the cylinder head and valves. I got it at my local auto parts store for 229.00. Not positive if you could see carbon but I assume you could.

Mike
__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 08:26 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page