Clk 270 CDI jerking and smoking

don shaleone

Senior Member
Joined
Nov 3, 2012
Messages
123
Reaction score
0
Location
Coventry, West Midlands
Your Mercedes
Mercedes CLK 270 CDI
Hi,

Recently ive been noticing the car jerking whilst applying light throttle, like its hesitating. But as it does this I notice black smoke coming from the exhaust and basically the more it jerks around the more smoke appears.

Its too embarrassing to drive at the minute but before this started it has been perfect. Any ideas???

I think it may be a clogged injector but is there any real way to tell?

Also are there any other things I can do in a attempt of process of elimination?

Thanks for any help I just want to be smoke free again :( (well almost will do)

Sent from my GT-I9300 using Tapatalk 2
 

mersum1es

Senior Member
Joined
Sep 25, 2010
Messages
2,352
Reaction score
427
Location
Finland
Your Mercedes
W212/-09/350CDI, W219/-07/320CDI, EX:W220/-01/320CDI, EX:W211/-04/320CDI, EX:W210/-01/270CDI
sounds more like turbo actuator jamming or EGR/inlet swirl flap problem...
do search above things, I'll bet there are lot of info.
 
Last edited:
OP
D

don shaleone

Senior Member
Joined
Nov 3, 2012
Messages
123
Reaction score
0
Location
Coventry, West Midlands
Your Mercedes
Mercedes CLK 270 CDI
  • Thread Starter
  • Thread starter
  • #3
Will look into them tonight after work.

Another thing is aswel when I accelerate now it sound like the heaters/ac comes on? Its only started doing this sibce the jerking/smoking :(

Sent from my GT-I9300 using Tapatalk 2
 

mersum1es

Senior Member
Joined
Sep 25, 2010
Messages
2,352
Reaction score
427
Location
Finland
Your Mercedes
W212/-09/350CDI, W219/-07/320CDI, EX:W220/-01/320CDI, EX:W211/-04/320CDI, EX:W210/-01/270CDI
Whoose sound? Then check the turbo hoses, attachment and splits (often between turbo and intercooler). If no obvious, try revving stationary and then locate the boost leak.
 
OP
D

don shaleone

Senior Member
Joined
Nov 3, 2012
Messages
123
Reaction score
0
Location
Coventry, West Midlands
Your Mercedes
Mercedes CLK 270 CDI
  • Thread Starter
  • Thread starter
  • #5
Whoose sound? Then check the turbo hoses, attachment and splits (often between turbo and intercooler). If no obvious, try revving stationary and then locate the boost leak.

Yeah could say whooshing but I think the blowers come on?

Sent from my GT-I9300 using Tapatalk 2
 
OP
D

don shaleone

Senior Member
Joined
Nov 3, 2012
Messages
123
Reaction score
0
Location
Coventry, West Midlands
Your Mercedes
Mercedes CLK 270 CDI
  • Thread Starter
  • Thread starter
  • #6
Going to check the car out tomorrow properly. Had a quick look at the boost pipes are they all seem fine :( will check more thoroughly tomorrow though

I did just notice the maf area seems quite oily?

Sent from my GT-I9300 using Tapatalk 2
 
OP
D

don shaleone

Senior Member
Joined
Nov 3, 2012
Messages
123
Reaction score
0
Location
Coventry, West Midlands
Your Mercedes
Mercedes CLK 270 CDI
  • Thread Starter
  • Thread starter
  • #7
Had a good look yesterday and the boost pipe that goes to the egr valve/intake manifold has a slit in it.

Changed this at the price of £63!!

But I'm happy it wasnt injectors or anything else :)

Sent from my GT-I9300 using Tapatalk 2
 

Peter Best Insurance is a leading specialist in Mercedes-Benz insurance. All MBO members are eligible for exclusive rates on all our classic car policies.
Call now for our 'BEST' quote. Tel: 01376 573033
Top Bottom