I'm looking for some help, I have the a4 with the bpw

My goal is to give you the best advice that I can and I hope that I've helped today. Please remember to rate my service by selecting from the 5 stars at the top of the screen before you leave. If you need more help, use the reply box to let me know.
If you're not pleased, also let me know because rating bad does not result in a refund, there are better options. Rating now will not close this post nor prevent further replies
Thanks Matt

The awx will technically fit on the big parts ( mounts , gearbox etc) as its essentially the same engine as the later units

however the bigger issue is the differences in the cams, injectors and cylinder head

all of these will mean a 1.9 engine won't run very well in car with 2.0 ltr ECU if at all

and re-coding the ECU to suit the earlier engine is not straightforward as you need a dealer to do it plus the engine wiring loom will need modifying / replacing

all in all I'd not recommend fitting the earlier unit

hello

there were also updated oil pumps with better / stronger drives

as the 'hex' drive on these balance shaft / oil pump units is what shears off and leads to carnage

VAG made several updates and the later revised pumps are much better

so perhaps find a good replacement and then have the pump swapped out for the latest design

Hello

the BRD unit is the high power version of your engine (170bhp vs 140 bhp)

so while its closer to yours in spec it will still need an ECU reflash to work properly and as this has to be carried out a dealer then it may outweigh the cost difference between a BPW engine and this BRD as they will charge at least 1 hours labour (£80-120)

and thats if they will tackle it as some won't on principle . as a lot of dealers won't touch anything thats not stock being scared of the possible consequences

Ideally the best route is the better pump into a good used BPW unit that should be good for at least 150K miles