Bentley Bentayga Diesel
Author
Discussion

IceBoy

Original Poster:

2,452 posts

244 months

Friday 14th November 2025
quotequote all
Hi All,

My 2015 full fat Range Rover Vogue SE 4.4 SDV8, is now on 150,000 miles.

To be honest I've put 50k on it and it has been unstoppable. It's quick, comfortable and frugal enough.

I tackle 550-650 miles over the space of 2-3 days sitting on the motorway, usually at 85 leptons.

So it's time to change and I have been looking at 2017-18 diesel Bentagas. I know they are not much newer than my Range Rover.... Any thoughts, insights and options to look for would be much appreciated.

Is there anything else that is better for what I need?

Iceboy

TISPKJ

3,756 posts

230 months

Monday 17th November 2025
quotequote all
I can't help but its on my shortlist as well so looking forward to any answers.

Al Gorithum

4,937 posts

231 months

Thursday 20th November 2025
quotequote all
Nice place to be but personally I'd be very cautious about buying one outside of warranty.

Abc321

994 posts

118 months

Thursday 20th November 2025
quotequote all
A good friend went the other way - Bentayga to a new FFRR.

The Bentayga had/has no end of issues, repairs were astronomical. He still has it due the huge negative equity he's found himself in but thats another story.

Al Gorithum

4,937 posts

231 months

Thursday 20th November 2025
quotequote all
Abc321 said:
A good friend went the other way - Bentayga to a new FFRR.

The Bentayga had/has no end of issues, repairs were astronomical. He still has it due the huge negative equity he's found himself in but thats another story.
At the end of the day it's an Audi, and Audi engineering is utter garbage.

TISPKJ

3,756 posts

230 months

Sunday 23rd November 2025
quotequote all
Al Gorithum said:
At the end of the day it's an Audi, and Audi engineering is utter garbage.
Really surprised at that comment, I have no real world Audi experience (other than a Quattro 40 years ago :-) ) but was rather hoping it would have been the reverse ....

Can anyone get a RR insured these days ? when I bought my Stelvio my current insurer didn't want to know.

Any specifics re issues or just in general ?

stevemcs

9,933 posts

116 months

Sunday 23rd November 2025
quotequote all
Usually timing chains on the Audis, if they do it’s around 12k to sort it out.

rollerderby

91 posts

194 months

Thursday 25th December 2025
quotequote all
I have had one for 2 years. It’s a great all rounder and is a joy to drive and very frugal. I have spent 5k on it in 2 years for a couple of services at a Indy and some issues with air struts. On the whole it’s been really good and is really special In comparison to a RR.

TISPKJ

3,756 posts

230 months

Saturday 27th December 2025
quotequote all
rollerderby said:
I have had one for 2 years. It s a great all rounder and is a joy to drive and very frugal. I have spent 5k on it in 2 years for a couple of services at a Indy and some issues with air struts. On the whole it s been really good and is really special In comparison to a RR.
Thanks, that's the kind of feedback I was looking for, I'm assuming a Bentley annual service would be circa £1500 and an Independent £600 would that be about right ?

obviously air struts will be expensive unless someone has developed an after market fix (like Mclaren) ?

Dr G

15,817 posts

265 months

Thursday 8th January
quotequote all
Bit of a thread bump but I only look in here occasionally.

Al Gorithum said:
At the end of the day it's an Audi, and Audi engineering is utter garbage.
This comment is "unhelpful" shall we say.

Diesel Bentayga is a close cousin of an SQ7, which are complex but generally quite good. I have experience with the model and almost 20 years professional experience with modern Audi.

An air strut repair kit is 350 Euro from Miessler, a bit more for a complete strut. Complete compressor less than 1000.

Bentley specific parts can be very expensive but I'm sure that isn't a surprise to anyone here. The shared Audi parts aren't as bad, and the commonality means that supply of used components is good too. Service, maintenance, and brake parts have good aftermarket support.

ChocolateFrog

34,954 posts

196 months

Thursday 8th January
quotequote all
M359 Restorations on YouTube is currently tidying up a Conti GT. It gives quite a good insight on the kind of bits that a shared and which are not. Shared parts are often quite reasonable, rear brake caliper off an Audi A8 for about €100 for example.

I'm sure it's similar on the Bentayga. If you're just punting it into a main dealer or even a specialist I imagine you're in for a reaming whether they source the cheaper parts or not.

Dr G

15,817 posts

265 months

Friday 9th January
quotequote all
Totally; it will never be cheap to run a Bentley but you should be able to mitigate a lot of costs an bring them back inside the stratosphere.

Renn Automotive who do all of my (Audi) work have had several Lamborghini Urus through the doors recently and saved the owners 4-figure sums vs. having the work done with franchise Lamborghini dealers. For them it's no different to working on an RS6.

TISPKJ

3,756 posts

230 months

Friday 9th January
quotequote all
Thanks Guys, its fairly much as I thought.

I am still looking, interestingly there are only 17 currently for sale out of about 800 made, they do seem to take forever to sell (no surprise) but I am surprised so few for sale (agree not best time of year etc etc but I have been looking for a few months) also only made for 2 years (2017/2018) maybe a close to 10 year old car is to much risk for a lot of people .... who knows.

Would be interested in your thoughts ...


edited to add - there are 34 out of 900 McLaren 720 for sale and its definitely not the time of year to sell one of those

Edited by TISPKJ on Friday 9th January 16:45

TISPKJ

3,756 posts

230 months

Saturday 21st February
quotequote all
This is just crazy .......

0-60 4.8 seconds

Top speed 168 mph

35 mpg average – 40+ mpg touring

Engine: 430 bhp 665lb ft of torque - 4.0 V8 “triple charged” (twin turbo and supercharger) diesel

This combination is key to that prodigious torque figure and the impressive acceleration times quoted by Crewe. Adopting 48 volts for its active roll bar technology allows Bentley to apply it to other vehicle functions – in this case a 7kW e-compressor that spins up to 70,000rpm in 250 milliseconds from start. This forces air into both banks of the V8, leading to a prompt response and an increase in its exhaust gas output, which helps spool the first turbocharger quickly.
The clever bit is that the engineering team has utilised the same cylinder deactivation technology employed in the petrol V8 to close off one exhaust valve per cylinder. There are two exhaust valves per cylinder, but each supplies a different turbo. At low speeds the exhaust valve supplying the second turbocharged is closed, increasing the exhaust gas flowing into the first turbo – allowing it to quickly and smoothly take over from the e-booster beyond engine speeds of about 1500rpm.
As engine speed increases the cam slides across, opening the second exhaust valve to feed the ‘passive’ turbocharger, which comes on boost from about 2700rpm to the redline.

ChocolateFrog

34,954 posts

196 months

Saturday 21st February
quotequote all
It's not that crazy. Performance figures are only incrementally better than my old 2011 V8 Touareg.

Speaking of which, wasn't it DSLiverpool on here who went the other way Bentayga to Touareg and IIRC said he didnt miss the Bentley.

TISPKJ

3,756 posts

230 months

Saturday 21st February
quotequote all
I was more referencing the technology side of it that I didn't previously know.
Also without looking the Bentayga is a lot heavier, making the performance even more impressive.
Your old V8 also did only 15mpg lol.

edited to add a quick search shows your car was a V8 diesel with 335bhp and 30mpg, I assumed a petrol.
Your right that must have been a great car back then, and it seems super rare also.

Edited by TISPKJ on Sunday 22 February 10:55

TISPKJ

3,756 posts

230 months

Thursday 5th March
quotequote all
OK - So I have bought one ....

Firstly I have to say I was completely surprised how what is still an expensive car has fallen into being serviced by the local garage, several I enquired about had been serviced "by my local garage at the same time as the mot" others by the "in-house service team". nothing wrong with that but will be potentially problematic to sell in the future.

I really didn't want a black one, so I bought a black one lol as it was about the only one owner, full Bentley history car out there.
Items to note, I have it on good authority that they DO NOT come with a service book despite what some sellers told me, so history has to be confirmed via a call to Bentley main agent and hope to fall on a helpful person which I did who confirmed full annual history with same main dealer.

I purchased the car needing a service, and a couple of other little bits like wheel refurb, and iffy parking sensor all negotiated off the asking price.
I have my own ideas on wheel refurb (colour etc) and can get done via friends at trade price.
Within a day or so I had an alarming issue with gear selection.
I put into the local main dealer (I already had the service booked) who diagnosed a new gear knob was required (£574) and also suggested the top suspension arms and bushes needed replacement (approx £800) happy to say the selling dealer agreed to cover the parts cost and we came to an agreement on the outrageous £300 ph labour charge.

So Bentley annual service, comes to just over £1000 for year 8, its not cheap but is about what I expected and more importantly keeps the car with full Bentley history.

So that's the boring bit out the way, so what's it like ?
First impressions are yes its a big car but doesn't drive like one, for such a lump its a very quick car (as above 0-60 in 4.6/4.8 seconds) obviously helped by the huge amount of torque available, its also reasonable agile and dare I say sporty.
Outside I would be lying If I said you couldn't tell it was a diesel, but its not bad.
Inside is as expected just a lovely place to be, wafting along in silence and complete comfort with every kind of adjustment you can think of.
Standard stereo is probably the best I have heard anywhere.
Headlights are absolutely incredible throwing so much light down the road.
Car Play works fine.
Parking in Sainsbury's is mainly fine, parking at Gatwick may require taking the wifes car lol.
The initial purchase journey home on a busy M4 M25 60 / 40 / stop start nonsense (a Friday) returned late 30's mpg, running around locally from cold is doing about 33mpg, I don't see why on a decent (French) motorway it won't return at least 40 mpg plus, I know it has a large tank (18 gallons) but I filled it up (because they said on the telly not too lol) and it is showing a theoretical fuel range of 680 miles !! .... crazy.

Any other bits I will add as and when, meanwhile questions on a postcard please :-)









Edited by TISPKJ on Friday 6th March 07:01

Dr G

15,817 posts

265 months

Friday 6th March
quotequote all
Good, glad you're happy with it so far. Seems you get a decent resolution on teething issues too.

Where are you approximately? Might be worth nothing contact info for an Audi specialist, in that there's no reason you couldn't get simple suspension work, repairs etc. done by someone else familiar with the platform rather than paying Bentley dealer rates.

As I say, my familiarity is with SQ7 rather than Bentayga but they really can be hustled if you're brave enough. Tiger disguised as an elephant. Most of the time they work best as a very fast, very comfortable cruiser.

TISPKJ

3,756 posts

230 months

Friday 6th March
quotequote all


Sorry for out of focus photo, trip into local main town this morning, normal B road driving 40-50 mph, this was the return leg, going was only 36 mpg @ 28mph av

Edited by TISPKJ on Friday 6th March 17:46

TISPKJ

3,756 posts

230 months

Friday 6th March
quotequote all
Dr G said:
Good, glad you're happy with it so far. Seems you get a decent resolution on teething issues too.

Where are you approximately? Might be worth nothing contact info for an Audi specialist, in that there's no reason you couldn't get simple suspension work, repairs etc. done by someone else familiar with the platform rather than paying Bentley dealer rates.

As I say, my familiarity is with SQ7 rather than Bentayga but they really can be hustled if you're brave enough. Tiger disguised as an elephant. Most of the time they work best as a very fast, very comfortable cruiser.
I can do most of the mechanics myself (discs pads etc), its just when you have to plug the things into a laptop we are all screwed, but your right Im sure there is a Lot of Audi bits in there ....