MBWorld.org Forums

SLK-Class (R170) 1998-2003: SLK 200, SLK 230K, SLK 320

SLK/R170: "Lumpy" running...missing a cylinder?....sometimes ok....

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 04-29-2023, 11:20 PM
  #1  
Member
Thread Starter
 
Billy22Bob's Avatar
 
Join Date: Dec 2010
Location: Wollongong, sydney Australia
Posts: 79
Likes: 0
Received 1 Like on 1 Post
R170 99SLK230 + SLK32
"Lumpy" running...missing a cylinder?....sometimes ok....
99 SLK230 50,000mls
Problem started a couple of weeks ago.
Sometimes when I start it, it sounds/feels like its missing a cylinder.
Go to the shops - lack of power - like a cylinder is missing.
Another day....Turn on = ok...
Another day .....Lumpy again.... I turn it off and back on - this time its all good.
Faulty CPS?.....
TIA
Billy22Bob is offline  
Reply Like
Old 05-01-2023, 05:34 AM
  #2  
Newbie
 
Fasterhorses's Avatar
 
Join Date: Mar 2016
Location: San Diego, CA USA
Posts: 9
Likes: 0
Received 3 Likes on 2 Posts
2003 SLK230
Could be a failing coil. If it was my SLK230 I would replace all 4 coils.
Fasterhorses is offline  
Reply Like
The following users liked this post:
chassis (05-01-2023)
Old 05-02-2023, 01:17 AM
  #3  
Member
Thread Starter
 
Billy22Bob's Avatar
 
Join Date: Dec 2010
Location: Wollongong, sydney Australia
Posts: 79
Likes: 0
Received 1 Like on 1 Post
R170 99SLK230 + SLK32
ok - will do.
Whilst Im in there....
What are the best standard spark plugs for the 230?
Billy22Bob is offline  
Reply Like
Old 05-02-2023, 12:35 PM
  #4  
Newbie
 
Fasterhorses's Avatar
 
Join Date: Mar 2016
Location: San Diego, CA USA
Posts: 9
Likes: 0
Received 3 Likes on 2 Posts
2003 SLK230
BOSH FR7KTC or PLATINUM B4417.
Fasterhorses is offline  
Reply Like
Old 05-04-2023, 02:38 AM
  #5  
Member
Thread Starter
 
Billy22Bob's Avatar
 
Join Date: Dec 2010
Location: Wollongong, sydney Australia
Posts: 79
Likes: 0
Received 1 Like on 1 Post
R170 99SLK230 + SLK32
thanx
what gap? - I'm running standard setup
Billy22Bob is offline  
Reply Like
Back to Subforum
SLK-Class (R170)
View Next Unread
Removing the hard top

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search
Quick Reply: SLK/R170: "Lumpy" running...missing a cylinder?....sometimes ok....


Reply Closed Thread Share

All times are GMT -4. The time now is 02:37 AM.