S320 cdi down on power

Bertie Wooster

Senior Member
Joined
Apr 28, 2016
Messages
144
Reaction score
15
Location
Scotland
Your Mercedes
W220 S320cdi
Hi all,
So, the other day, after leaving the car standing for about seven weeks (battery on maintenance with a ctek), I took the old girl out for a run. She instantly felt down on power, particularly in the 40 to 60 range. Sure enough, an epc fault popped up. I didn’t bother to plug in my MB2 until a few days later, and it showed a P2015 code, regarding the intake manifolds runner or some such. I blanked the code, but it came back almost immediately. I’m guessing this is the dreaded swirl flap issue?
Would I be right in thinking that the resistor bypass would save this? If so, where exactly is the plug that the resistor fits into? Also, is there any ill effect from bypassing the shutoff motor?
A few observations: whilst driving with the code still active, I got pretty exceptional MPG, and some really silky gear changes (not something my car has always provided!). Only visible symptoms are lack of power, and no kickdown.
Car is an 05 w220 S320cdi, with 140k on it.

Any advice gratefully received!

Many thanks guys!

Bertie
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,530
Reaction score
12,630
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Another vote for the resistor mod as a cheap “potential” fix
 

S320cdiL

New Member
Joined
Aug 16, 2019
Messages
2
Reaction score
1
Your Mercedes
S320 CDI L 2004
id do the port motor mod pal , its easy and cheap so go for it and also check the condition of the orange seal on the bat wing
Hi, do you know the location of this plug to bridge with a resister please? I have a 2004 w220 ( straight 6)
 

Wighty

Senior Member
Joined
Aug 4, 2016
Messages
13,530
Reaction score
12,630
Location
Sunny Essex
Your Mercedes
W211/E320cdi/2009 and CLK200k 2009
Hi, do you know the location of this plug to bridge with a resister please? I have a 2004 w220 ( straight 6)
I’m not sure the straight 6 works the same with the resistor fix compared to the V6 om642 ?? On the V6 it’s the electrical plug to the inlet port motor which is visible by removing the air intake to the front of the turbo .
 

S320cdiL

New Member
Joined
Aug 16, 2019
Messages
2
Reaction score
1
Your Mercedes
S320 CDI L 2004
I’m not sure the straight 6 works the same with the resistor fix compared to the V6 om642 ?? On the V6 it’s the electrical plug to the inlet port motor which is visible by removing the air intake to the front of the turbo .
Thanks for your reply.
 

pgh13

Senior Member
Joined
Apr 1, 2019
Messages
596
Reaction score
489
Location
Nr Leamington Spa
Your Mercedes
E320CDI 2004 - straight 6 diesel
My 2004 straight 6 doesn't have them, although the manifold looks to have the same casting as those that do.
 


Comand (Europe) Ltd are the leading specialists in supplying and fitting Comand, Linguatronic, Media interface kits, UHI phone, IPod interfaces and much more.
Top Bottom