W210 E320 Cdi EPC (loss of power under hard acceleration)

[W210VIP]

Hello,

So just a quick overview. Gearbox in limp mode, no gear changes, no boost.

Fixed: change conductor plate and connector.

Car now changes gears and has full boost! However boost in now intermittent only under hard acceleration.

Codes came up with MAF and high turbo pressure. MAF changed with Oem Pierburg and issue still persists.

Any ideas?

P.S.

Egr has not been deleted. YET!

Thank you

 

[W210VIP]

Please help. Anyone!

 

[bob6600]

The problem with these is that the EGR can cause limp mode but it throws a code up via the MAF so immediately people change the MAF and it doesn't cure it. Can you test any live data? If the EGR is gunked up, it is best to clean it out before the delete IMO and once the car is working correctly go from there

 

[W210VIP]

Thanks for chipping in, it’s greatly appreciated!

Yes my mechanic would be able to test live data. He even said he could delete the egr from his computer system. Is this possible. I seen quantum tuning do it.

How would I able to take off the egr valve? Seems like a bitch to get too.

Next step would be turbo actuator

 

[mersum1es]

check vacuum lines for leaks, and you can swap turbo and egr control actuators

 

[GordonTarling]

How long since it had a new fuel filter? Worth changing it if it's been a while.

 

[amazighman]

Egr delete supposed to be an MOT failure under the new guidelines.

Remove it and give it a good clean every now and again.

My personal practice

Hello,

So just a quick overview. Gearbox in limp mode, no gear changes, no boost.

Fixed: change conductor plate and connector.

Car now changes gears and has full boost! However boost in now intermittent only under hard acceleration.

Codes came up with MAF and high turbo pressure. MAF changed with Oem Pierburg and issue still persists.

Any ideas?

P.S.

Egr has not been deleted. YET!

Thank you

i do not tamper with any environmental devices on cars , be it EgR dpf or cat.

 

[W210VIP]

check vacuum lines for leaks, and you can swap turbo and egr control actuators

Done and no luck. Even bought a new transducer

 

[W210VIP]

Egr delete supposed to be an MOT failure under the new guidelines.

Remove it and give it a good clean every now and again.

My personal practice

i do not tamper with any environmental devices on cars , be it EgR dpf or cat.

I don’t know if this is true for egr and diesels

 

[W210VIP]

Egr delete supposed to be an MOT failure under the new guidelines.

Remove it and give it a good clean every now and again.

My personal practice

i do not tamper with any environmental devices on cars , be it EgR dpf or cat.

Need to figure out how to get the egr out!

 

[W210VIP]

OM 648

 

[bob6600]

OM 648

Are you sure? The W210 has an OM613 and W211 has an OM648.

The EGR isn't too difficult but will require a bit of time. An E10? socket and/or 8mm spanner (ratchet) make life a lot easier. You will lose some coolant too. You need to remove the EGR cooler which can be a pain to line up. EGR has 3 bolts on the top and one underneath connected to a long bracket which holds in against the block. This is easier from underneath with an extension.

 

[amazighman]

New items
New items that you’ll test from 20 May 2018 are:

• brake fluid contamination
• additional braking device performance
• daytime running lamps
• front fog lamps
• reversing lamps
• bumpers
• prop shafts
• all rear drive shafts
• cab security
• cab steps
• floors
• passenger hand grips (quads and heavy trikes only)
• noise suppression material
• undertray security
• emission control equipment:
  • oxygen sensor
  • NOx sensor
  • exhaust gas recirculation valve
  • other emission control equipment
• engine malfunction indicator lamp
• diesel particulate filter (DPF) tampering
• fluid leaks - engine, transmission and so on

I did read the new mot guidlguide and it does mentioned EGR

 

[W210VIP]

New items
New items that you’ll test from 20 May 2018 are:

• brake fluid contamination
• additional braking device performance
• daytime running lamps
• front fog lamps
• reversing lamps
• bumpers
• prop shafts
• all rear drive shafts
• cab security
• cab steps
• floors
• passenger hand grips (quads and heavy trikes only)
• noise suppression material
• undertray security
• emission control equipment:
  • oxygen sensor
  • NOx sensor
  • exhaust gas recirculation valve
  • other emission control equipment
• engine malfunction indicator lamp
• diesel particulate filter (DPF) tampering
• fluid leaks - engine, transmission and so on

I did read the new mot guidlguide and it does mentioned EGR

Oops sorry you are correct. Om613!
And correct again. However I hear people passing with the delete.

 

[W210VIP]

Are you sure? The W210 has an OM613 and W211 has an OM648.

The EGR isn't too difficult but will require a bit of time. An E10? socket and/or 8mm spanner (ratchet) make life a lot easier. You will lose some coolant too. You need to remove the EGR cooler which can be a pain to line up. EGR has 3 bolts on the top and one underneath connected to a long bracket which holds in against the block. This is easier from underneath with an extension.

Thanks for this. Will give it a go!

 

[amazighman]

I believe the EGR is there for a very good reason and it is to reduce NOx which is a harmful gas that gives the diesel its bad reputation.

EGR is a regular maintenance item, so cleaning it every now and again isnt a bad thing. Once you have removed it once or twice it will be an easier task to do.

Best of luck

 

[W210VIP]

Anyone know anything about the egr delete? Trying to figure you out if I need to cut the wires or just peel back insulation and install shunt

 

[W210VIP]

I believe the EGR is there for a very good reason and it is to reduce NOx which is a harmful gas that gives the diesel its bad reputation.

EGR is a regular maintenance item, so cleaning it every now and again isnt a bad thing. Once you have removed it once or twice it will be an easier task to do.

Best of luck

Thanks I will definitely clean it up first!

 

[bob6600]

Anyone know anything about the egr delete? Trying to figure you out if I need to cut the wires or just peel back insulation and install shunt

You do not need to cut the wires

 

[W210VIP]

You do not need to cut the wires

So just peel back insulation for wires and connect my shunt and then electrical tape it up?