Bmw e46 318i n42 engine 2003 car starts up when cold ok but won't rev up but 100% fine when up to temp had new pump etc and filter .

SOURCE: I have a 1995 chev lumina 3.1 engine. The car

It almost sounds to me like your EGR valve is full of carbon and not able to open properly so your engine is running rich.

SOURCE: 1994 bmw e36 325 tds

There is a company in Northern Ireland called Exact Engineering that can convert your dual mass flywheel to single mass using a complex engineering process ending with a finely balanced guaranteed single mass product. They have a complete courir service.

You can see their website at www.exact-spec.com and contact them at [email protected]

SOURCE: mercedes E300 turbodiesel, 1999, is poor to start

Yes sir , you have a failing valve, soon it will snap in two....please have your head checked. You can do this yourself by placing a long-handed screwdriver , business end down to each cylinder while pressing your ear to the handle(while engine is running)...you will notice a definite difference when you hit which cylinder has the bad valve. Also makes sure the egr valve is clean and your exhaust recycle valve is not stuck.( located in the crossover pipe)

SOURCE: 2003 bmw 325i no fuel pressure loses power to pump

replace the fuel pump relay

SOURCE: bmw n42 oil pump

the m42 oil pump is located inside the timing chain cover and is an integral part of the casing so it is neccessary to remove the water pump + viscous fan etc to expose the pump front cover then remove 4 machine screws to examine the pump rotors underneath.