Hello, tomorrow I'm going to see a '98 525tds touring (manual), and though I know most things to look at when buying a petrol powered BMW, I have nothing on the m51 tu.
Well, other than the fuel pump being prone to fail, and I guess they have a water pump with plastic impeller and problems with the radiator like petrol cars.
I've read the m51 is more silent than the m57, but I've also heard the opposite; same for reliability, and everyone agrees on the fact that an m57 is more frugal and powerful (unfortunately, m57-equipped e39's do not fit within budget anytime soon, there is quite the price difference over here in the Netherlands).
As with all dual mass flywheels, they're going to go out at some point in time so I'll be on the lookout for rattles, and as with all turbo equipped cars, I'll be listening for a whining turbo or whooshing sounds indicating there is a charge air leak.
I've had the opportunity to drive a 530dA touring for about six months so I'm not completely lacking knowledge about a diesel powered e39.
So, I'm looking for tips mainly about the engine as most other things are, as far as I know, no different from petrol-powered e39's.
Well, other than the fuel pump being prone to fail, and I guess they have a water pump with plastic impeller and problems with the radiator like petrol cars.
I've read the m51 is more silent than the m57, but I've also heard the opposite; same for reliability, and everyone agrees on the fact that an m57 is more frugal and powerful (unfortunately, m57-equipped e39's do not fit within budget anytime soon, there is quite the price difference over here in the Netherlands).
As with all dual mass flywheels, they're going to go out at some point in time so I'll be on the lookout for rattles, and as with all turbo equipped cars, I'll be listening for a whining turbo or whooshing sounds indicating there is a charge air leak.
I've had the opportunity to drive a 530dA touring for about six months so I'm not completely lacking knowledge about a diesel powered e39.
So, I'm looking for tips mainly about the engine as most other things are, as far as I know, no different from petrol-powered e39's.