BMW 1-Series Forum (F20) 135i - 1Addicts.com > Second Generation 1 Series Forum > DIY Guides and Instructions > F20 Electrical pump Fault
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      11-20-2021, 06:26 AM   #1
ArnAud68
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F20 Electrical pump Fault

Hi, i've an issue with the electrical water pump on my wife 118i 170HP. I've change it, clear fault but it reappaear a few days later.

What can i do / check ?

Thank u.
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      12-02-2021, 05:54 AM   #2
stupar
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http://bmwfans.info/parts-catalog/F2..._fuel_pump_k12

Can this be helpful?

I assume you have replaced aux water pump already. In my case, I had to change the aux water pump as well as the water pump relay.

Maybe the relay causes the same error again, its a cheap part (cca. 15€) so it is worth checking. It would be helpful if you write what errors appeared after few days?
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      12-03-2021, 09:12 AM   #3
ArnAud68
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Quote:
Originally Posted by stupar View Post
http://bmwfans.info/parts-catalog/F2..._fuel_pump_k12

Can this be helpful?

I assume you have replaced aux water pump already. In my case, I had to change the aux water pump as well as the water pump relay.

Maybe the relay causes the same error again, its a cheap part (cca. 15) so it is worth checking. It would be helpful if you write what errors appeared after few days?
THX. In't it the fuel pump relay in back of the rear seat ?
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      12-06-2021, 04:20 AM   #4
stupar
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Quote:
Originally Posted by ArnAud68 View Post
THX. In't it the fuel pump relay in back of the rear seat ?
Yes, it is located in back of the rear seat.
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      12-11-2021, 03:29 AM   #5
ArnAud68
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THX for reply, but sure is it the water pump relay ? Part says it's FUEL pump relay ...
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      12-13-2021, 05:24 AM   #6
stupar
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Quote:
Originally Posted by ArnAud68 View Post
THX for reply, but sure is it the water pump relay ? Part says it's FUEL pump relay ...
Mea culpa
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