C220 CDI Classic Turbo problem

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
My 51 plate C220 has been laid up for about 15 months and the engine wasn't run for about the last seven. I had to get it MOT'd and they said they couldn't get the Turbo to work more than intermittantly, but long enough to pass the test?? Anyway, it appears that when I first start-up the Turbo works OK but quickly gets to the point where the acceleration becomes very flat and the max revs are 3000. The garage says it could be the turbo actuator that's sticky after sitting for so long, but I'm concerned that something more dire is wrong.

The car seems to drive very smoothly and mpg is still good, just no oomph. Any ideas?:confused:
 

Cole@MBS

Forum Supporter
Authorised Forum Supporter
Joined
Dec 1, 2008
Messages
13,628
Reaction score
766
Age
51
Location
Hedge End, Southampton
Website
www.mbssouthampton.co.uk
Your Mercedes
124 300 CE 24 Coupe, C220CDI, 1959:Morris Minor
Theres a boost sensor but i suspect the wastegate is sticking!! thats the more common fault!

Welcome to the forums!
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #3
Thanks for the welcome and thanks for the info..... what's the cure?:rolleyes:
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #5
Ugghh.... how much do they run out at? Any idea? Is it possible to do a DIY job replacement? Any advice is much appreciated:shock:
 

Cole@MBS

Forum Supporter
Authorised Forum Supporter
Joined
Dec 1, 2008
Messages
13,628
Reaction score
766
Age
51
Location
Hedge End, Southampton
Website
www.mbssouthampton.co.uk
Your Mercedes
124 300 CE 24 Coupe, C220CDI, 1959:Morris Minor
Not cheap, you need to make sure that, that is the fault before you buy one,

I belive there around the £700 mark!
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #7
Booo Hoooo ....... thanks for all your help... I'm going into a corner and beat my head against the wall I think
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
331
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
If the flaps are stuck,,and this has only happened as it has been standing,,there must be some way of freeing them up
 

paulbrook

Member
Joined
Jul 1, 2009
Messages
16
Reaction score
1
Location
Cumbria
Website
www.rustytrucks.com
Your Mercedes
1998 W202 C250TD
If it has been stood something will be stuck, not broken. Do not panic - I bet good money that it will be something simple and stupid, and I would be amazed if a new torbo was needed (unless it was shot before it was laid up). As far as I know (and I could be wrong) turbos work all of the time - and the control systems are there to stop it working not make it go - in your case a wastgate. Either that is sticking or the actuating solenoids are sticking. Have you let it idle for a long time and let it get lovely and warm, raising the revs gently every so often to encourage a little movement in the bits and bobs?

Alternatively (and no real help I know) you could take the view that only two items are required in a toolkit. Duck tape and WD40. If it moves and it shouldn't, use the duck tape. If it doesn't move and it should - WD40.
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #10
Further Possibility

Just been looking at another thread for a different model with same rev problems.... a suggestion was is the air filter needing replacement as this will put that model into safe mode. Does the same happen on the 220?
 

Cole@MBS

Forum Supporter
Authorised Forum Supporter
Joined
Dec 1, 2008
Messages
13,628
Reaction score
766
Age
51
Location
Hedge End, Southampton
Website
www.mbssouthampton.co.uk
Your Mercedes
124 300 CE 24 Coupe, C220CDI, 1959:Morris Minor
If it has been stood something will be stuck, not broken. Do not panic - I bet good money that it will be something simple and stupid, and I would be amazed if a new torbo was needed (unless it was shot before it was laid up). As far as I know (and I could be wrong) turbos work all of the time - and the control systems are there to stop it working not make it go - in your case a wastgate. Either that is sticking or the actuating solenoids are sticking. Have you let it idle for a long time and let it get lovely and warm, raising the revs gently every so often to encourage a little movement in the bits and bobs?

Alternatively (and no real help I know) you could take the view that only two items are required in a toolkit. Duck tape and WD40. If it moves and it shouldn't, use the duck tape. If it doesn't move and it should - WD40.


This was a common fault with the 203 and 211 when they first come out, changed more of these things than i care to remember!!
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
331
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
You could unplug the MAF and try the car
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #13
Thanks I'll try that BUT........

I'm ignorant of the underneath of a Merc so

a) What is a MAF?
b) Where will I see it?
c) Where's the plug?

Ta:Oops:
 

Cole@MBS

Forum Supporter
Authorised Forum Supporter
Joined
Dec 1, 2008
Messages
13,628
Reaction score
766
Age
51
Location
Hedge End, Southampton
Website
www.mbssouthampton.co.uk
Your Mercedes
124 300 CE 24 Coupe, C220CDI, 1959:Morris Minor
As you look at the engine, left hand side airbox,front of the engine, five pin muti plug just over a inch long, thats the kiddie!!
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #15
Thanks again, saw that plug earlier this evening.
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #16
Unfortunately it would appear the air filter is OK.... still tops out at 3000 revs. Funny thing is though everything works fine when the engines cool.... seeems odd.
 

rpe2

Senior Member
Joined
Sep 25, 2006
Messages
2,863
Reaction score
2
Age
43
Location
Silchester
Your Mercedes
His: 2018 E220 d; Hers: 2016 SMAX
Lerpy,

There is a merc indie up at Headley Pro-Tech Garage Services Tel: 01635 299811| Units 1-2, Orchard Business Park, Newbury Rd, Kingsclere, Newbury, Berkshire RG20 4SY

Failing that a run down to MBS would take less than 45 mins.

Would get this nailed once and for all...
 
Last edited:

Blakey

Senior Member
Joined
Oct 11, 2007
Messages
295
Reaction score
1
Location
Brighton UK
Your Mercedes
C180 Sport (12) Blueefficiency
Anyway, it appears that when I first start-up the Turbo works OK but quickly gets to the point where the acceleration becomes very flat and the max revs are 3000.

Since the turbo works intermittently, - i suspect you may have a low vacuum boost pressure. This will show up on star or other obd2 readers.

Get the codes read otherwise it's guesswork. ;)
 
OP
Lerpy

Lerpy

Active Member
Joined
Jul 24, 2009
Messages
42
Reaction score
0
Location
Thatcham, Berkshire
Your Mercedes
Mercedes-Benz C220 CDI Classic
  • Thread Starter
  • Thread starter
  • #19
Took my motor to the Merc dealer and they think that as the Turbo works when the engine temp is below 50 degrees C then there guess, (that's cos I wouldn't pay for a test yet) that it'll be the MAF and not the turbo itself. Any comments anyone??
 

Alex Crow

Senior Member
Joined
Jul 9, 2009
Messages
10,677
Reaction score
40
Location
Super Suffolk
Your Mercedes
W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
hi lerpy. sounds like it is going into a default rpm and power limiting mode (emergency program). there are many many possible causes - really you need fault codes reading as a starting point.
 


A truly one stop site for Mercedes owners. Very experienced – friendly – down to earth – cost effective repairs offering either genuine or same quality parts so that you do not compromise your Mercedes heritage or reliability. Tel: 01406 422457fleetroadgarage.co.uk
Top Bottom