Replace EGT sensor for GLK250-2014

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Sep 2, 2019 | 11:10 PM

DavidHoang

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From: Calgary, Alberta

GLK250-Bluetec 2014

Replace EGT sensor for GLK250-2014

Hi every body, my GLK250-2014 I got an engine light appeared and got OBD code reader to get code P2081.I replace EGT sensor upstream of cat convertor. but few days later the code P2081 came out again. Any suggestions? Thanks

Last edited by DavidHoang; Sep 16, 2019 at 06:44 PM.

Sep 2, 2019 | 11:14 PM

MJ50

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From: MBworld

bone stock E55 AMG

thx for the video...

moved to X204 forum...

Mar 20, 2021 | 06:45 PM

calculicious

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2014 GLK250 Bluetec

Hello! I have recently encountered P2033 and P2084. So I replaced EGT sensor 2 on Bank 1 with OEM part. It cleared the P2084 when I erased the codes via OBD, but P2033 seems to come back on. Not every time I drive, but it is always a pending code. I'm wondering if your CEL ever went away?

Mar 20, 2021 | 07:53 PM

DavidHoang

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From: Calgary, Alberta

GLK250-Bluetec 2014

Quote:

Originally Posted by calculicious

You may need to replace EGT at Upstream Turbocharged Sensor as well.
[img]blob:https://mbworld.org/5aab0ed4-87de-4b4f-a80e-5a4648a23df4[/img]

Mar 20, 2021 | 09:36 PM

calculicious

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2014 GLK250 Bluetec

Quote:

Originally Posted by DavidHoang

You may need to replace EGT at Upstream Turbocharged Sensor as well.
[img]blob:https://mbworld.org/5aab0ed4-87de-4b4f-a80e-5a4648a23df4[/img]

Even though no code came up for EGT sensor 3? Only sensor 2 was throwing codes.

Mar 20, 2021 | 10:32 PM

DavidHoang

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From: Calgary, Alberta

GLK250-Bluetec 2014

Quote:

Originally Posted by calculicious

Even though no code came up for EGT sensor 3? Only sensor 2 was throwing codes.

Codes explanation is not always very detailed, and hard to know exactly which EGT sensor is failure. My case was with code p2081, I replaced first with new Upstream EGT sensor of catalyst, CEL still ON. Later replacement with new Down stream EGT sensor ( at DPF), it did not help, CEL still ON. Then I decided to replace Upstream Turbo Charger EGT sensor. This time of replacement helped to eliminate the CEL on. It works still now for more than one year, no problem.

Location of upstream turbo temperatures sensor. Underneath of Engine Air Filter. When you remove the box content of CPU, and Engine air filter, you will see it.

Mar 21, 2021 | 03:27 PM

calculicious

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2014 GLK250 Bluetec

Thanks for the detailed explanation. My code is specific to Bank1 Sensor2. Your code P2081 seems to point to your 3rd and last replacement of EGT sensor at Bank1 Sensor1. By all logic, My code P2033, which is for Bank1 Sensor2, should have gone away with my replacement of EGT sensor at the specific location, but it persists...I'll go test the sensor 1 (pre-turbo) to make sure it's still working...