Mercedes Benz R-Class W251 EGR, DPF, DTC off

Mercedes Benz R-Class W251 EDC16CP31 EGR & DPF Off:

Mercedes Benz R-Class was produced from 2006 to 2017, the diesel version of this midsize MPV has the OM642DE30 with different engine codes from R280 cdi to R350 cdi BlueTEC model.

This engine and ECU configurations are widely used in Mercedes C, E, ML, GL, CLS, S class, sprinter and also several Chrysler/Jeep models.

Common Fault Codes of MB W251:

• P040500: the position sensor for the exhaust gas recirculation controller (cylinder bank 1) has a short circuit to ground
• P0244: Turbocharger Wastegate Solenoid “A” Range/Performance
• P1402: EGR related fault code
• P1408: EGR system fault
• 14CF00: The boost pressure actuator has a malfunction
• 111500: The charge air pressure is too low
• P2453/11DA00: Diesel Particulate Filter (DPF) Pressure Sensor A Circuit Low Input
• 2078-2: Check component B28/8 (pressure differential sensor) the signal voltage is low.
• 2079-1: diesel particulate filter engine protection is active, DPF pressure is above the limit.

Best Programmer Tools for EDC16CP31 ECU

1. Alientech Kess3 (OBD/Bench/boot)
2. Alientech KessV2 (OBD)
3. Autotuner (OBD/Bench)
4. Magicmotorsport Flex (OBD/Bench/Boot)
5. CMD Flash (OBD/Bench/Boot)

Mercedes Benz R-Class W251 ECU Tuning Solutions:

W251 EGR Off Solution:

1. First use a scanner or diagnostic tool and gather a list of related fault codes.

2. Read the ECU file via OBD port or using bench/Boot method depending on your tool compatibility

3. Upload the file on our website 

4. Your file will be available in your dashboard within 15 minutes

Note: make sure the EGR actuator plug is disconnected.

5. Write the file to the ECU then clear fault codes.

W251 DPF Off Solution:

Note: For Mercedes models with this engine and EDC16CP31 ECU the full backup read file is required.

1. First use a scanner or diagnostic tool and gather a list of related fault codes.

2. Read the ECU file via OBD port or using bench/Boot method depending on your tool compatibility.

3. Upload the file on our website.

4. Your file will be available in your dashboard within 15 minutes.

Note: Make sure the DPF temperature and pressure sensors are disconnected. 

5. Write the file to the ECU, clear fault codes and do a forced regeneration.

Mercedes Benz W251 Sensors Location:

EGR Sensor Location:

The EGR valve is located at the back of engine next to the turbocharger and intake manifold.

EGR Vlave Location in Mercedes Benz OM642 Engine 

EGR valve and actuator plug

 

EGR Valve Location

DPF Sensor Location:

DPF pressure and temperature sensors are located rear the engine on the left side of the exhaust side of the turbocharger.

DPF Pressure and temperature sensors

 

DPF temperature sensor of Mercedes Benz W251

 

Mercedes Benz R-Class W251 DPF pressure sensor

 

If you need a tested  DPF, EGR, DTC off file for your Mercedes Benz R-Class W251, send us your ECU file and receive a professional solution in the shortest possible time.