BMW F31 330D / 335D - would it be a ticking time bomb?
BMW F31 330D / 335D - would it be a ticking time bomb?
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Discussion

DickP

Original Poster:

1,134 posts

167 months

Wednesday 20th August
quotequote all
Hi,

I am looking at options (either spend on existing car and run for a bit longer or change now), and the replacement could be an F31 330/335D.

To give a bit of background when the F31 330D was only a couple years into production I had the opportunity to use one occasionally for going up and down the country. It was typical fleet spec M-Sport with halogen lights but pro nav (strange combination if you ask me). I really liked using it, even when just cruising on the motorway. Since then I have owned a variety of cars including a fun Renaultsport Clio 182. I have also driven a friend's F11 530D on and off which is without a doubt a nice place to be but also felt very "grown up".

Just recently another friend has got a F31 320D LCI (which had M-Sport trim but a non-M Sport steering wheel?). Even as passenger it reminded me that I do like these cars.

I am now thinking about getting an F31 but the dilemma is I have been spooked by horror stories that the 3 litre engines (particularly in 335D guise) are ticking time bombs, spinning bearings or snapping chains or lunching turbos. I also have no idea what difference the X-Drive really makes to reliability or running cost (and most late LCI examples appear X-Drive irrespective of being 330D or 335D ?).

The age of car would preferably be in the final year or two of production and <60k miles as I do around 15-20k miles a year.

Comments and experiences welcome.

ZX10R NIN

29,424 posts

142 months

Wednesday 20th August
quotequote all
Get the 330d, they're not ticking time bombs unless you want Xdrive (I personally feel the non Xdrive cars ride better) then the 330d is the sweet spot.

Dog Biscuit

975 posts

14 months

Wednesday 20th August
quotequote all
Not sure where you've read that but the 335d engine, if well maintained is reliable. Had a number of em and always been good news




Edited by Dog Biscuit on Wednesday 20th August 21:04

andy118run

942 posts

223 months

Wednesday 20th August
quotequote all
I drive an F30 335d. MY2014. X-drive, M sport etc etc.

Got it a couple of years ago from a BMW dealer.

Was on 23k miles when purchased. Now on 47k miles.

No issues to report. A bit dull to drive but totally reliable.

When the BMW warranty expired after a year, I simply renewed it, and pay £58 p/m for comprehensive cover.

(BMW Insured Warranty Services). Hopefully if anything did go wrong, I won't have a really nasty bill.

Chestrockwell

2,859 posts

174 months

Thursday 21st August
quotequote all
I had a 430d for nearly 3 years, thrashed the life out of it, put about 35k miles on it, never skipped a beat.

I can't speak for the 35d's reliability, the only thing I recall reading about is how they have to sit a bit higher to avoid catching the transfer box with speed bumps, probably a myth, in fact, I heard about it here on pistonheads

Timoo

62 posts

73 months

Thursday 21st August
quotequote all
If you’re looking at post 2015 models then you don’t really have much to worry about, the LCI models use the N57 engines which have an improved timing chain set up.

Although that said, the N57 (pre LCI) is still known to be very reliable but can suffer from timing chain weakness.

Can’t go wrong with either imo, I used to own a 430dx and loved it. Potentially looking at getting an M340d soon.

Edited by Timoo on Thursday 21st August 15:21

Chris_i8

2,239 posts

210 months

Thursday 21st August
quotequote all
Owned both in touring guise.

Both completely reliable in my ownership.

If I were to revisit I'd get another 330d (non x-drive) over the 335d - the latter being really rather dull & I found the 30d to ride better & the engine a much smoother companion.

Discombobulate

5,658 posts

203 months

Thursday 21st August
quotequote all
As above, mine was faultless over 50K, but a tad boring.

DickP

Original Poster:

1,134 posts

167 months

Thursday 21st August
quotequote all
Hi all,

Thanks for the replies. I thought the newer B57 only got fitted to the model after (G20 I think?) not the F30/31.

Will see what cars are out there, though distinct lack of RWD models with under 70k miles from my initial browsing.

Timoo

62 posts

73 months

Thursday 21st August
quotequote all
DickP said:
Hi all,

Thanks for the replies. I thought the newer B57 only got fitted to the model after (G20 I think?) not the F30/31.

Will see what cars are out there, though distinct lack of RWD
models with under 70k miles from my initial browsing.
Yes sorry you are correct, I got mixed up, B57 only used on G series! Though I do believe the LCI N57 engines still had an improved timing chain design over pre LCI so definitely worth going for a later one.