I’m stumped on my E55 issue…

[MCFastybloke]

Thank you. It’s on link I DIY’d myself with threaded bar and small ball joints.

Wheels are SL550 NA versions so 1/2” wider front and rear over stock running:
255/40/18 front
285/35/18 rears
Michelin pilot sport AS3+

It lugs my family of 4 around with luggage with ease




I’ve not thought of this. Any ideas what parts or any diagrams please?

I’m pretty hands on and so like to get stuck in.

No sorry, i did have this problem on another Supercharged car,it ran rich, sooty exhaust,those following could smell the unburnt fuel but the pump motor was turning, the shaft was dislodged so not supplying the air, no pump code cos it was actually working. This car did occasionally throw a code for being rich but we knew there was an issue by nose and eye. Took some finding.

 

[Vick N]

Also worth looking at the actual readings from coolant temperature sensor, intake air temperature sensor and ambient air temperature sensor. Incorrect but plausible readings won’t log a fault code but can affect fuelling. Similarly a stuck open thermostat that means the ecu will never fully come off cold start enrichment

I will see if the snap on diagnostics can check those. Do you know of any guides to show values?

Also, does Anyone recommend a specialist would knows about the E55s local to West Yorkshire?

Thank you.

 

[AMGeed]

I will see if the snap on diagnostics can check those. Do you know of any guides to show values?

Also, does Anyone recommend a specialist would knows about the E55s local to West Yorkshire?

Thank you.

MSL have a branch in Bradford.
Someone there should know a bit about the M113k as they remap them?

Mercedes Specialist Repairs | Remaps | Repairs | Exhausts

MSL Performance North are an independent ECU tuning specialist operating nationwide & internationally, we are based in the Yorkshire area.

msl-performance.co.uk

 

[MrGreedy]

I will see if the snap on diagnostics can check those. Do you know of any guides to show values?

Also, does Anyone recommend a specialist would knows about the E55s local to West Yorkshire?

Thank you.

Maybe also big fish in Stokesley. They have a rolling road and seem to work on a lot of Mercs and at least in the past have collaborated with MSL on some maps I understand. A pleasant part of the world up there.

 

[alabbasi]

Valve stem seals. Check for oil consumption.