Hi all,

I’m still looking for a Bentley Continental GT. I’ve come across another one for sale in Scotland(there’s not too may up here). Anyway, I'm looking at a 2004 model and this one seems ok but it failed its 2024 annual UK MOT(Emissions/safety check) on CO emissions and Lamda incorrect. Seller said it was fixed by adding fuel additive(he didn’t say what type) and driving a few hundred miles. The MOT website does show he done a few hundred miles in between MOT failure and MOT pass. I don’t take anything for granted when buying cars and I just want to check with the forum that adding fuel additives could indeed potentially fix lambda/CO emission problems. Can anyone comment?

Seller also said the few hundred mile drive also sorted a ‘dragging’ rear calliper!! It went from ‘dragging excessively’ to ‘dragging, but not excessively’ in the MOT tests. I’m not to worried about this as I can check this if I view the car and there are repair kits for $50 on ebay. Do you need any diagnostics etc to change the calliper/bleed the brakes?

Thanks again

Tony

 

Whats your budget Tony.?

 

About Ł10k Frank

 

Cheers.
Ive been thinking of selling mine. Imine.08 GT Speed. I had Bentley Glasgow remove the engine and check all vac lines . Replaced oil coolers and pipes. Relocate n75 valves. Both turbos fully reconditioned. Gear box and TQ fully reconditioned. New Starter. New egt sensors. . As I use the car regularly in Europe I spent 20k on all the usual areas of possible potential failures. Bug im hankering on another Cosworth. The car has a lot more done to it which I can pm you with if required including price etc.
Frank

 

I think that'll be a bit out of my price range Frank, but feel free to PM me with info just in case.
Can you answer any of my questions?

 

If you could get a fault code or live reading of the O2 sensors, that would help pin down a more accurate idea of the issue?
Im not sure one way or another if an additive could cure the emissions? But it would be good to get a lambda reading now as if is.

 

Thanks Frank, I appreciate your help.

 

So I was using 95 petrol for a while in mine and it failed its MOT, and Bentley Marbella were as useful as a chocolate fireguard in diagnosing it with anything but the cats have failed......heres a 20k bill for new cats and engine out at 5k just for thre labour.....I changed back to 98 and after about 1000 miles popped it back in for MOT and it passed. Go figure......

I would ask the guy what fuel he puts in it.......

PS I am from Glasgow but live in Europe......and you have no idea how hard it is to even gets parts here let alone an honest opinion.....

PPS - To change all 4 sensors its 2 in the front without engine out and theres at least one that is an engine out job by main dealer, but theres a way that specialist garages can tilt the engine and get to it, but its a hard job so no one wants to do it.....hence why your guy is selling it....

 

So Franks car set aside, if you can get someone with a diagnostics like the one a lot of people including myself use from the Ross Tech guys, then it will tell you in ECU 2 ehat is wrong IF there is somethign wrong. I had no errors in ECU2 and that was thw annoying bit, as it failed an MOT but could not be diagnosed. Bentley Marbella used a heat gun on the cats, and said failed but lots of decent research said thats not really reliable tbh. I think the problem here is someoen needs to spend money to get ti working, and it whether thats you or the seller, but its quite a diagnosis or expense to correct if its the sensors, and even then it could be cats.

 

Thanks Cue. I'll ask the seller what fuel he used at the time of the MOT failure. I've done some research on youtube and it appears from the videos and the responses that some additives/cleaners do genuinely work. The 98 octane also has some added detergents I think, so I can see why the 98 helped as you said. Can you remember if your MOT failure was lambda/CO emission problems as per the seller's car?

 

Yeah so my emissions was something like CO2 1.23 (see red line) or something when it was supposed to be like 0.20 or something. Here is what mine looked like. I am supposed to show insurance at ITV (aka MOT) time, and I had rear smoked lenses but not sure what I do next year! lol I would like Supersports lights but they are never on sale used much on eBay. And they are about 3k lol.

 

Thanks again Cue. I had a similar CO issue as you with a wee Kia Picanto my daughters were leaning to drive in. It failed the MOT on CO emissions. The MOT station somehow manged to get it to pass the retest but warned me I'd need a new Cat for the next MOT. A few months later I had to replace the back exhaust box and I found a piece of the ceramic from the CAT in the pipe going into the old back box. The Picanto had done 180,000 miles so couldn't complain. This GT has done 96000 miles! Anybody know how long the GT Cats last?