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Originally Posted by Razor I went for the 530D M Sport as it was slightly more economical than the 535 and it only had one turbo to fix if it went wrong. Both are stunning cars and you wont go wrong with either model.  |
Someone please correct me, but I seem to recall that the 5series turbos are all variable vane, but of course the twin turbos on the 535 cover different ranges and therefore have reduced geometry variations. I don't know if there's any evidence about the relative failure rate, but the added complexity of the increased variation on the 530D might offset the two turbos on the 535D.
For info, I drive a 535DSE E61 (fairly well loaded) and I have to say I love it. Came to it from a 330DSE E46 and the 535, whilst a little less "chuckable" as an estate rather than the 3 series saloon, just has oodles of power to spare. I'd echo the thoughts on miles being driven though, you need to be doing a fair few to make the diesel work for you on a pure economy argument. The other thing to remember is that the Diesel Particulate Filter (DPF) needs to go through a regeneration cycle from time to time so the engine needs to have a good workout occasionally.
I was in a similar position to yourself when I bought, looking for either a 530D or a 535D. I'd have preferred the 530D in a manual personally, but having used a 535D for a couple of years I'm certainly happy with it - just make sure you get a decent warranty (BMW or 3rd party) because there's an awful lot of toys to go wrong! I've only had a parking sensor fail to date but there's always that worry...!
Al