BMW 525i vs 525d 2002/3 - Gazza
Got a friend who is undecided between the petrol 525i and diesel 525d of 4-5 years old; read the CBC breakdown and the general story is rosy. Is there any significant problem areas to be aware of? I know BM's cooling systems are bad on the petrol but does the cooling system also affected the diesel?

Also, the 320d produce 150 bhp at the same year yet the 2.5 straight-six only produces 163bhp and 258 lbft. So is the 2.5 diesel very under-stressed or BM is under-quoting the power and torque figure?

Any maintenance issues to be aware of? Like problematic diesel pump / injectors which affected some Mondeo TDCi or autobox that breaks down after 100,000 miles?

He does 15,000 miles a year so which will be a better bet?

Thanks in advanced for any advice, Gazza