G31 540i - B58 longevity?
G31 540i - B58 longevity?
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SlowV6

Original Poster:

682 posts

158 months

Yesterday (20:15)
quotequote all
Hi again, I recently asked about G31 530ds, thinking that at my price point of <=£20k the 30d would be a safer long term bet. However a B58 also greatly appeals. How do the two engines fare as they go beyond the 100k mile mark?

I don't do huge miles, but there will now be 6 to 10 round trips from Poole to Birmingham for 3yrs ferrying our daughter to and from uni. I thought the 30d would excel at this, but then one AdBlue related issue would likely more than negate any fuel savings.

Are B58s tough. The Internet suggests they are quite robust. Anyone run one to 150k miles?

If of interest my only other candidate is a Leon 300 ST mk3.5 as boot space is same if not better than a G31. 540i and Leon's are about the same price actually with the later steadfastly refusing to depreciate!

</waffle>

Thanks again.

scz4

2,710 posts

260 months

Yesterday (21:24)
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Got a 530d (albeit 2017 F11) and a Supra with B58.

B58 is well matched in the Supra and whilst it does have decent low down torque, it's nothing like the initial shove of the 3.0 diesel. For me the 30d suits the nature of big family wagon much better, effortless. MPG in B58 is quite staggering for what it is, perhaps not when you add 400kg and x-drive though.

Had the B58 for 3 years ( approx10k miles) and 30d for 5 years and 45k miles, no problems with either.

edthefed

811 posts

86 months

Yesterday (23:14)
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Almost every UK Police force ran 530d and diesel X5s up to very high mileages for many years until BMW withdrew from that market.

150,000 miles or 5 years whichever came first was our defleeting policy,

They had a hard life and coped with it well were then sold at auction