335i BMW warranty questions

335i BMW warranty questions

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Captain Bongo

Original Poster:

127 posts

170 months

Friday 11th April 2014
quotequote all
Morning PH and happy Friday,

I'm in the market for a 335i convertible with a budget of £14k.

I know very little about the N54 engine so have been in a Google frenzy trying to do as much research as possible before making a purchase. I just wanted to gather the thoughts of the PH BMW folk to get your opinion/feedback before going any further.

From what I can see there are three issues to be concerned with on the N54 engine:

- High pressure fuel pump failure.
- Carbon build up
- Turbo Wastegate component failure/rattle.

My budget would put me in an 08 car on circa 45k miles so I would expect the above issues to either have started manifesting themselves already or not be far away.

I have received a quote from BMW and their comprehensive warranty with zero excess would be £58 per month which I would definitely go for.

My questions are:

- Was the HPFP a factory recall? Can I check to see if it's had it done by calling BMW?
- If not, would the BMW warranty replace it should it fail?
- Would the carbon build up issue be fixed under warranty? From what I gather reading online they would only fix it if it triggered the engine management light but wondered if anyone had first hand experience of this.
- A remap would be very tempting given it would push power up to circa 375 bhp. I assumed that a remap would invalidate my warranty? Would a remap lead to any other issues or concerns?

Apologies if this has been done to death.

Cheers in advance for any help.






Captain Bongo

Original Poster:

127 posts

170 months

Monday 14th April 2014
quotequote all
Thanks for the comments. I ended buying an E93 on Saturday. Its an 07 plate on 60k miles with fbmwsh.

The 08 plate on less miles that I saw in the morning was very tatty. The one I bought felt like it was brand new.

The snag being, as its over 60k miles BMW now want £109 a month for fully comp with no excess! If I change the excess to £100 it drops to £70 so ill probably do that for peice of mind.

Captain Bongo

Original Poster:

127 posts

170 months

Monday 14th April 2014
quotequote all
Cheers. Sent you a pm with the details. Forgot to mention it is a manual. smile

Captain Bongo

Original Poster:

127 posts

170 months

Thursday 17th April 2014
quotequote all
Thanks for the feedback. I've got the BMW Comprehensive warranty and am loving the car!

Now then....BMW warranty friendly mods biggrinbiggrin

Captain Bongo

Original Poster:

127 posts

170 months

Wednesday 7th May 2014
quotequote all
Well after a mammoth 4 weeks of happy ownership I had my first issue with the 335 at the weekend.

Driving back from the coast an hour into the journey I got a "bong" and the orange engine management light came on. No noises or perceived loss of power as far as I could tell. I pulled over at the next services, turned the engine off and let it rest for 10 minutes, started it up and the engine management warning had gone and I got the "check -ok" message. The engine sounded fine and no further issues for the next hour of motorway driving.

Should I overly worry? I'll put the car into the garage to be checked our and have the codes read ASAP but hoping the fact the light went off after a restart means it's nothing to be too concerned about. Appreciate it could be 1 of 200 issues so not expecting an accurate diagnoses, more blind reassurance biggrin








Captain Bongo

Original Poster:

127 posts

170 months

Wednesday 7th May 2014
quotequote all
It's a 2007 E93 on 60k miles.

I took out the BWM fully comp warranty the day after I bought it but as it didn't have existing cover it takes a month to kick in so not covered on that until next week.








Captain Bongo

Original Poster:

127 posts

170 months

Friday 16th May 2014
quotequote all
Thanks for your feedback RDawson. The car is now fully covered under Comprehensive BMW warranty so hopefully if any of the bits go wrong you have described I'll be OK.

I've seen no further sign of the Engine Management light thankfully!