Fuel pump relay 323i

[Atle_323i]

I purchased a new fuel pump relay to my car, since the current one I have is very old, and I think it might fail at any time.
So I got the only one available to get in Norway. But when I put it in and turn on the ignition, the relay doesn't start the fuel pump.
The new has the same configuration as the old.

Are there any changes on pin configuration on preface vs facelift? Is the new relay for facelift?



New on left and old to the right.

[Jeroen]

Ik tried to get this a bit clearer as well as BMW ETK lists 2 part nos separately: 12 63 1 277 245 and 13 63 1 276 264 but without a clear distiction.

SHO SK6460 is same as BMW nr 1 363 827 (or 12 63 1 363 827 or 1 363 827.2), interchangeable with later BMW nr 12 63 1 277 245.

2nd model is from Siemens type 5 WK2 220 of 5 WK1 648, both supplied under BMW nr 12 63 1 276 165 and superceded by BMW nr 13 63 1 276 264. BUT if I look up the latter part it comes out as a 7-prong relay. Weird!

I was also under the impression all were interchangeable, but perhaps this is not the case after all?

[Atle_323i]

Ik tried to get this a bit clearer as well as BMW ETK lists 2 part nos separately: 12 63 1 277 245 and 13 63 1 276 264 but without a clear distiction.

SHO SK6460 is same as BMW nr 1 363 827 (or 12 63 1 363 827 or 1 363 827.2), interchangeable with later BMW nr 12 63 1 277 245.

2nd model is from Siemens type 5 WK2 220 of 5 WK1 648, both supplied under BMW nr 12 63 1 276 165 and superceded by BMW nr 13 63 1 276 264. BUT if I look up the latter part it comes out as a 7-prong relay. Weird!

I was also under the impression all were interchangeable, but perhaps this is not the case after all?

This is very frustrating. I don't know what to do when my old relay dies. Since the new I got won't work.
The only thing to do is to buy a used fuel relay, same as mine, but then we're back to old parts, which can die, from 1 week to even years of use.
So if anyone know about a relay that fit and work, please let me know.

[Jeroen]

Well these old school relays are built quite well, they don't fail often and if they do, usually there is an external cause like a short circuit. I wouldn't be bothered to have a used example as a spare, so that is what I have myself as well.

[Atle_323i]

Well these old school relays are built quite well, they don't fail often and if they do, usually there is an external cause like a short circuit. I wouldn't be bothered to have a used example as a spare, so that is what I have myself as well.

I found this on Wallot

https://www.wallothnesch.com/en/catalog ... 2631277245

This is a SK6460 relay, I guess this is like the old I already have?

[Jeroen]

yup