DS3 1.6 e-hdi fuel pump relay location?

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sixfoottwo
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DS3 1.6 e-hdi fuel pump relay location?

Unread post by sixfoottwo »

Does anybody know where it is?

I need to crank the engine over without it starting and figured this would be the easiest way however I've no idea where the relay is!

Anyone?

Thanks.
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mickthemaverick
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Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by mickthemaverick »

What year is the car? :)
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
RichardW
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Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by RichardW »

The e-HDI doesn't have an electric fuel pump. If you don't want it to start, unplug the injectors, or the crank sensor.
Richard W
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mickthemaverick
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Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by mickthemaverick »

Good point Richard, I missed the 'e' #-o
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
sixfoottwo
Posts: 49
Joined: 13 Jun 2022, 15:03
x 2

Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by sixfoottwo »

RichardW wrote: 31 Jan 2026, 13:57 The e-HDI doesn't have an electric fuel pump. If you don't want it to start, unplug the injectors, or the crank sensor.
Thanks, probably why I can't find it then!!

I was thinking about unplugging the injectors but won't that spray fuel on cranking?
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mickthemaverick
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Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by mickthemaverick »

I think Richard meant unplugging the electric feed to the injectors, not the fuel feed! :)
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
sixfoottwo
Posts: 49
Joined: 13 Jun 2022, 15:03
x 2

Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by sixfoottwo »

mickthemaverick wrote: 31 Jan 2026, 14:25 I think Richard meant unplugging the electric feed to the injectors, not the fuel feed! :)
Yeah, silly me its been a long day! :oops:
sixfoottwo
Posts: 49
Joined: 13 Jun 2022, 15:03
x 2

Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by sixfoottwo »

Bump!

OK, so I've managed to unplug the connectors for all injectors and managed to test cylinder 4 and 3 however 1 and 2 are not possible without disconnecting the fuel filter lines because of the access needed resulting in diesel spraying out on cranking !

Any ideas on this?
sixfoottwo
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Joined: 13 Jun 2022, 15:03
x 2

Re: DS3 1.6 e-hdi fuel pump relay location?

Unread post by sixfoottwo »

Finally managed to test all the cylinders without spraying fuel ! 3 coming back around 410 and one is showing 400 so guessing all OK.