330d Oil Service

Today I performed an oil service on the 330d, and wanted to document it here for future reference.

As the car does around 5,000 miles per annum I change the oil and filter annually. The car’s service counter allows 17,000 miles or something bonkers between oil changes, but I’m acutely aware of the importance of clean oil, especially in engines where the turbo shares the oil system.

These interim services aren’t noted in the car’s official service book, but I document them here for peace of mind.

Mileage: 159,246 (4,679 miles since last oil change)
Date: 23rd December 2019 (last service 7th January 2019)
Parts cost: £35.38! (had a couple of litres of 5W40 in stock)

Photographic evidence:

2 comments so far

  1. Patrick A. J. Lundgaard on January 7th, 2020 11:43

    How come you’re using 5W40, I see it as a low quality oil? Castrol recommend 0W30, I use Castrol Egde 5W30 LL04(BMW Long-Life approved) because i think 0W30 i too thin after 452k km.

  2. Neil Mukerji on January 11th, 2020 18:32

    Hi Patrick,

    Your comment immediately made me panic I’d made a massive mistake, but I’ve now done a lot of reading and I’m happy that while 5W30 is the most commonly used weight, 0W30 and 5W40 are also within specification. I’ve found plenty of people online who recommend running the M47 on 5W40, but I can see that my car has had Castrol 5W30 a lot in the past too as you say.

    I agree with you that I’d avoid 0W30 to ensure it isn’t too thin with those cold starts. Then at the other end of the scale, especially as we’ve been having hot summers here in the UK recently, the 40 hot weight oil should offer a better coating on the internal engine components at higher operating temperatures.

    It seems everyone agrees that the key factor is to have fully synthetic oil changed frequently, which I do. Every 12 months without fail. That’s a maximum of 6,000 miles for me recently, which is around a third of the distance the car seems to think it can go per change!

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