The BBC’s investigation follows an in-depth Autocar report about the implementation of a defeat device fix

The BBC’s Watchdog consumer investigation programme will tonight focus on the spate of problems reported by owners following the fitment of a post-Dieselgate fix to their Volkswagen Group cars. 

The programme is investigating owners’ claims that their cars went into limp-home mode unexpectedly after the fix. Volkswagen has said an "overwhelming majority" of its customers who have had the fix applied to their cars are happy with it. 

You can read our findings from the Autocar post-Dieselgate test here and you can read the insight behind our investigation here: what does this mean for UK VW owners?

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Autocar has previously tested a car before and after the Dieselgate fix was applied. Although no outright faults were detected, the car gave poorer fuel economy and greater CO2 emissions after the update, despite NOx emissions being halved by the tweak. 

Following the fix, the owner of the car tested by Autocar had been presented with a 'Certificate of Completion' that stated the performance, fuel economy, CO2 emissions, torque or noise of the car were all unaffected by the fix. 

Volkswagen has already responded to the BBC’s investigation, which airs this evening at 8pm. VW said: “Implementation of the technical measures does not cause limp-home mode to engage nor does it increase the incidence of limp-home mode occurring. Limp-home mode is a safety feature of our, and many other, vehicles. It is activated as a precaution if a vehicle experiences a fault."

"Relevant authorities have confirmed that the technical measures have no adverse impact on the mpg figures, the CO2 emissions figures, engine output, maximum torque and noise of the affected vehicles. Nor does the implementation of the technical measures have a negative impact on the durability of the engine or the emission control system.”

You can read our findings from the Autocar post-Dieselgate test here.

Read the insight behind our investigation headline here; what does this mean for UK VW owners?

Read more: 

Volkswagen denies its Dieselgate fix causes breakdowns

Bosch created Volkswagen Dieselgate cheat software, study alleges

Volkswagen pledges to rectify problems caused by Dieselgate software fix

Volkswagen dieselgate emissions scandal: 20,000 UK cars being fixed a week

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8

12 July 2017

Did owners ever volunteer to have their cars updated, it was never going to be better.

Worse still, they never got a penny to clear up VW's mess. 

 

Hydrogen cars just went POP

12 July 2017

Perhaps because they weren't asked if they wanted it doing or not and we're just subjected to it when the vehicle went in for routine servicing.

I'm convinced this happened to me. My A3 went in for a routine service in the Autumn of 2015. Never had any problems before this point and then it went badly wrong!

Limp mode from cold was the problem intially. Turn the engine off and then back on and it would cancel. After this happened a few times I booked it in to be looked at. Audi proceeded to change every hose they could think of, sensors, turbo, engine management unit, oil pump. In total over the last 18months, my car has been off the road for a good 6months-9months. 

 

If it wasn't for a great local dealer who made sure I had an identical courtesy car every time which meant my roof bars fitted, then I would have tried harder to reject the car (company car on a lease which meant lots of red tape to reject).

 

I'm convinced they've taken the ability for the car to go into limp mode out now, as it has stopped doing that, but drives like a pig and averages about 15-20% worse than back in the good old days when it was actually a good engine ( as far as 4 cylinder diesels go!). It feels like there is a serious problem with  post control, with very little happening below 2000rpm, very noticeable turbo lag and very sudden full boost from nothing with little to no control. Horrible to drive, I certainly wouldn't have chosen the vehicle if it had behaved like that originally. 

 

I've up trying to get it fixed now and am just counting down the time to my next vehicle arriving (Vauxhall Astra, no way I was having another Audi with a 2.0 Diesel. Out of interest, all the many ( well over  a dozen) courtesy diesel A3s I have had during this debacle have had problems to a greater or lesser extent . The 1.6s tend to have what feel like clutch issues and the 2.0 just don't feel like they're  boosting cleanly. 

 

 

 

 

13 July 2017

If you think they changed it without your permission just phone Audi in a couple of weeks and ask them if your car needs to come in to be re-jigged. They're have a record of all updates regarding this matter.

 

Hydrogen cars just went POP

12 July 2017

if  "the technical measures have no adverse impact on the mpg figures, the CO2 emissions figures, engine output, maximum torque and noise of the affected vehicles. Nor does the implementation of the technical measures have a negative impact on the durability of the engine or the emission control system"and that's actually true, then why weren't the cars made like that in the first place?

12 July 2017

The EU fuel economy test result might be the same but the real world fuel economy is likely to be worse overall.

VW has a cheek. They are updating cars without fitting uprated fuel injectors, an uprated Exhaust Gas Recirculation Valve or an uprated Diesel Particulate Filter. They must do this so that those components will be reliable/not break for a reasonable amount of time in service.

The VW emissions update puts extra wear and tear on the fuel injectors, the Exhaust Gas Recirculation Valve and the Diesel Particulate Filter.

VW is being completely unfair on its affected customers. VW is treating its customers will complete contempt.

I hope that BREXIT stops VW selling their polluting cars in the UK. We don't need their single market rubbish here!

17 July 2017
max1e6 wrote:

VW is being completely unfair on its affected customers. VW is treating its customers will complete contempt.

But Volkswagen have had this attitude for years: Bringing such things as DSG and twin charger to market without proper development, and letting their customers put up with the consequences and costs of this rushed approach are just two other examples of this. The sad thing is that those same customers just keep on bending over and taking more of it, and Volkswagen know they will do this.

13 July 2017

The sad thing is that people still contine to buy their cars. VAG are by far the largest supplier of cars in the UK so are making billions out of us, yet have treated their European customers in the most appalling way. Where are the huge fines that were levied in the US? More EU corruption, no doubt.

13 July 2017

I love my Polo GTI, it's ace.

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