E39 540i PAS Pump Recommendations?

[Bercilac]

My lad has bought himself a slightly broken E39 saloon 540i - PAS pump sheared, common problem apparently.

It looks to be a simple job (42 years of spannering man and boy) but I'm not sure what brand of pump to go for. TRW, Stark, DRI, Ridex - lots to choose from.

Does anyone have any recommendations please?

Also, does anyone have advice about other stuff to change or check whilst the PAS is in bits?

I'm mostly a TVR chap (apologies fellas) so Zee German auto experience is new to me.

[d_a_n1979]

Bercilac said:

My lad has bought himself a slightly broken E39 saloon 540i - PAS pump sheared, common problem apparently.

It looks to be a simple job (42 years of spannering man and boy) but I'm not sure what brand of pump to go for. TRW, Stark, DRI, Ridex - lots to choose from.

Does anyone have any recommendations please?

Also, does anyone have advice about other stuff to change or check whilst the PAS is in bits?

I'm mostly a TVR chap (apologies fellas) so Zee German auto experience is new to me.

Personally I'd buy a known working one from a breaker or one that's been refurbed than fit anything aftermarket.

[Bercilac]

Thanks I'll investigate. Just concerned that if the brackets on OEM are made of poor quality cast ally then one from a breakers is likely to have the same problem.

[BFleming]

I think those pumps are unique to the M60 and M62 engines, so a regular 6 cylinder won't be a straight swap.

[d_a_n1979]

BFleming said:

I think those pumps are unique to the M60 and M62 engines, so a regular 6 cylinder won't be a straight swap.

IIRC they are; that's why I suggested sticking with OEM

Aren't they made by ZF (could be wrong)?

[Bercilac]

Yep, different to straight 6, these are the ones I've been looking at: https://www.autodoc.co.uk/car-parts/power-steering...

There are several versions for the V8 and they seemed to have changed them for specific models (e.g. X5) and years.

[Bercilac]

Just for completeness I decided against buying a cheap pump and took the advice to get one from a breaker. Quarry Motors in Sheffield came up with the goods, a used LUK pump (BMW original fit part). Stripped, checked, cleaned and reassembled with a coat of paint on the pulley all good.

We can still use the internals from the old pump if/when the new one starts to go bad and I plan to make a steel bracket to strengthen the silly aluminium mounting ears as a fail safe to the thread lock and double locking nuts on the fastenings.

[d_a_n1979]

Bercilac said:

Just for completeness I decided against buying a cheap pump and took the advice to get one from a breaker. Quarry Motors in Sheffield came up with the goods, a used LUK pump (BMW original fit part). Stripped, checked, cleaned and reassembled with a coat of paint on the pulley all good.

We can still use the internals from the old pump if/when the new one starts to go bad and I plan to make a steel bracket to strengthen the silly aluminium mounting ears as a fail safe to the thread lock and double locking nuts on the fastenings.

Perfect

Quarry are a good source, can be expensive at times though I've found