Mercedes GL350 DEF pre heater and additive pressure line REPLACEMENT!
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- Опубліковано 10 лют 2025
- Welcome back all you beautiful people! On todays video our patient is a 2010 Mercedes GL350 BLUETEC. This particular Mercedes was brought to us on a flat deck tow truck with a frozen DEF tank due to a failed DEF tank pre heater. So today we will be going over how to replace the DEF tank heater as well as the additive pressure line running up to the injector nozzle. The following check engine codes were displayed leading up to these repairs
*20B91B.*
Bosch DEF tank pre heater part no#F 01C 600 245
Mercedes additive line part no#164-470-91-64
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Cheers yall!
Olaf
Thanks for the video. I replaced heater after watching your video 6 months ago. No check engine light for past 6 months. Now I am getting pressure too low code. Can you help ?
Hey ! That’s awesome news glad my video helped you out ! Doing a similar job on a sprinter van in the next week or two , can you tell me what the code is your getting ??
I'm getting code 20E823 saying pressure in def tank is too low. Pressure in delivery pump was between 50-62 psi last night when I drove it. I drove it today check engine light came back on, but I am not sure what was the pressure at delivery pump since I did not have my computer hooked up.
Any tips on removing the line on both ends? That's really what I wanted to see. Was there a c-clip on both ends?
Been a minutes since that one yes should be a c clip push in style clip at both ends
do you have to drop the tank just to replace the line? if possible, try to make another video on this later, as the feedline isn't covered by class action suit, there is another video out there but not for the w164 i think yet, it might become a very popular video, as people often watch things many times trying to do it DIY style
also the video way too fast for people trying to follow it and not enough details, it would only be good for another mechanic, if you want to be a successful car youtuber you need to baby step everything, you can also make the videos longer and make more money that way
That’s true thanks for the advice ! I did not drop the tank no ! If I get another one through here I will make another video brother thank you kindly !!!
Do you have to relearn after line replacement?
I just replaced the pressure line but code 20B91B comes on when it goes below minus degrees.
Any help would be great.
No relearn needed after line replacement