Skip advert
Advertisement
Long-term tests

Audi TT Final Report: 9,357 miles

A late problem with an exhaust sensor couldn’t blot our coupé’s copybook after a thrilling 12 months on our fleet

Our Audi TT has been getting a bit hot under the collar lately – and it’s got nothing to do with fiery volcanic ash in the atmosphere or the UK’s sizzling summer weather.

Rather, the temperature was rising under the coupé’s stylish bodywork. And according to the car’s manual, when two amber warning lights started flashing on the TT’s instrument panel, it was down to the diesel’s glowplug and the engine management system and catalytic converter. The handbook was unequivocal in the course of action. ‘Get it to your dealer IMMEDIATELY!’

Advertisement - Article continues below

I called my local franchise in Southend, Essex, to seek further advice. “It’s okay to drive, but bring it in asap – we wouldn’t advise you take it anywhere too far, say like John O’Groats!”

A couple of days later, the TT was in a service bay at Southend Audi, with the diagnosis that a faulty exhaust gas temperature sensor was the culprit. But the guilty part wasn’t in stock and another visit was needed the following week to do the job.

The return trip also allowed work to be carried out on a ‘mystery’ recall. The dealer listed it as a Code 23D8, which involved modifying the drainage tubes for the air-conditioning system.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Used - available now

3-Door Hatch

2020 MINI

3-Door Hatch

34,000 milesAutomaticPetrol2.0L

Cash £14,490
View 3-Door Hatch
Korando

2021 SsangYong

Korando

18,400 milesAutomaticPetrol1.5L

Cash £13,000
View Korando
Grandland

2024 Vauxhall

Grandland

14,100 milesManualPetrol1.2L

Cash £14,670
View Grandland
C-Class Coupe

2015 Mercedes

C-Class Coupe

87,000 milesAutomaticDiesel2.1L

Cash £5,990
View C-Class Coupe

I thought I’d check out with Audi UK how many TTs were affected – and guess what? It assured me there was no such thing as 23D8. However, a quick trawl through various online forums suggests I’m not the only TT owner to have this work done.

Anyhow, the Coupé is now back to its usual reliable and brilliant self. We’ve clocked up a total mileage of 9,350 across the editorial team – and apart from the sensor and recall, the 2.0 TDI continues to run smoothly, powerfully and economically. We’re averaging just over 37mpg, which is great for this type of car.

Advertisement - Article continues below

Even after a year on our fleet, the TT still turns heads thanks to its beautiful lines, distinctive optional Petrol Blue paint finish and muscular 19-inch alloys. Be warned, though – those rims are all too easy to scuff if you spend a lot of time driving in town!

Inside, the TT’s beautiful leather-trimmed cabin has worn well. The seats are supportive and comfortable, no matter what size or shape the occupants.  And the Audi continues to surprise and impress everyone with its practical boot. It really is amazing what will fit in with the rear seats down – we even carried a bike in it!

But then, this TT is full of surprises – none more so than what lies under the bonnet. The 2.0-litre TDI engine sounds positively sporty for a diesel, yet it’s smooth, refined and has bags of torque for those occasions when you need to put your foot down. Yes, the TT ownership experience has been a joy – even when the temperature rises! I can think of only one car this summer that could replace it – and that’s the TT Roadster!
 

Extra Info

“The Audi is heading off into the sunset,and according to Glass’s Guide it should still be worth £24,750 – a drop of £2,865. That’s not bad after a year and 10,000 miles. The Government’s new road tax regime has also seen the cost of an annual disc fall by £10 since we took delivery last May.”

Ross Pinnock
Road test editor

Skip advert
Advertisement

New & used car deals

Omoda 5

Omoda 5

RRP £24,040Avg. savings £1,557 off RRP*Used from £18,490
Kia Sportage

Kia Sportage

RRP £12,380Avg. savings £3,506 off RRP*Used from £11,650
Nissan Qashqai

Nissan Qashqai

RRP £11,120Avg. savings £6,248 off RRP*Used from £9,895
Volkswagen Golf

Volkswagen Golf

RRP £12,795Avg. savings £3,429 off RRP*Used from £10,895
* Average savings are calculated daily based on the best dealer prices on Auto Express vs manufacturer RRP
Skip advert
Advertisement

Most Popular

Used Car of the Year 2026 is the Hyundai Ioniq 5
Used Car of the Year 2026 - Hyundai Ioniq 5

Used Car of the Year 2026 is the Hyundai Ioniq 5

While you can’t go wrong with any of our Used Car Awards winners for 2026, the Hyundai rose above the rest
News
21 Oct 2026
New Chery Tiggo X7 revealed: who knew a Tiggo could get so tough?
Chery Tiggo X7 - front 3/4

New Chery Tiggo X7 revealed: who knew a Tiggo could get so tough?

Chery's new Tiggo X7 SUV promises greater off-road ability than the standard Tiggo 7, but UK launch plans remain unclear
News
21 Oct 2026
Tories spark rumours of 'heavy car tax' in Labour budget - here’s what it could cost
Land Rover Defender V8 - front cornering

Tories spark rumours of 'heavy car tax' in Labour budget - here’s what it could cost

The Conservative Party is claiming that Chancellor John Healey may bring a weight-based car tax supplement in with the next budget
News
23 Oct 2026