[Apples12]

Hi all

Just ticking over 120k miles on my 2014 520d with the n47d20c engine, running great so far

What sort of mileage should I look to be replacing the drive belts, tensioners, water pump, vibration damper?

I want this car to keep on going as long as possible, currently putting 5-600 miles a week on it and it needs to last!

It will be going for a dpf clean around Easter time (local company which specialises in it - fully remove, clean, flow test and refit)

[n00bkiller944]

Interesting how do they clean it?

[Apples12]

Originally Posted by n00bkiller944

Interesting how do they clean it?

They remove the dpf from the car and use various solutions I think, fully pressure and flow tested before going back onto the car. They do truck dpfs a lot and have been established for a very long time

[Enabled]

I think you should do accessory belt, crankshaft pulley/vibration dampener, and cooling system right away.

I wouldn't trust the crankshaft pulley for more than 100,000 miles, so this one would be a priority.
I do not think there is an established maintenance interval. But all your listed items are related. You should add a thermostat to that.

[kdog_x]

Just curious, Is the crankshaft pulley a problem part? I've never had a car where that was suggested to be replaced as part of maintenance. I have the accessory belt hanging on my wall for the next time I get motivated. Just broke 100k, so if the pulley's recommended as well maybe I should pick one up as well.

[Enabled]

Not necessarily a problem part, at least not as bad as the M57 had it. Pulley has a similar design with a large amount of rubber.

There are at least 2 cases of it mentioned in the high mileage thread.

[kdog_x]

Ooh, that crankshaft pulley from the other thread looks bad! Not sure if its a one off, but definitely worth inspecting