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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