Fault codes on 307

I own a Peugeot 307 HDI 110 2002. Management light on permanently (message comes as: antipolution fault & ESP no function). I plugged it on computer and it comes up with: P0246 Turbo Pressure, P0401...

EGR Valve failure on C-MAX

After 37,000 miles, mostly motorway, ENGINE SYSTEM FAILURE warning was displayed accompanied with a loss of engine power. Recycling the ignition temporarily cleared the fault and restored the power....

Limping Lexus

My Lexus IS220d (57-plate, 36,000 miles) has a warning light: VSC check engine, EML indicator and ABS warning. It goes into limp mode to protect the engine. I have taken it to a Lexus dealer who has...

Should I change my car?

I have a Sept 2007 Mazda 6 2.0 diesel, which has been totally reliable and trouble free for 3.5 years. I have read your advice that diesels start costing money in years 4-6. What is likely to need doing...

Gaseous exchange

Recently the emissions warning light came on in my 2005/55 Audi A4 TDI which has done 55,000 miles and always been serviced at my local Audi dealer. Upon inspection they said there is a leaking EGR valve...

Can you explain how a diesel particulate filter works?

Can you give us any information on where I can find a proper explanation of the function and potential limitations of a diesel particulate filter?

Can you recommend an economical car for my 60-mile commute?

I currently own a 2007 Aygo+, with three doors. Following a job change last year I am now commuting over 60 miles a day on the A5 and A38, both dual carriageways, between Tamworth and Derby. I am spending...

Running an Aygo diesel

Engine management light comes on and goes off with no loss of power. I have had the EGR valve changed, this has not stopped the problem; when having a diagnosis, it shows exhaust gases.

How are DPFs damaged by repeated short journeys? Our 2000 BMW 320d has done 180,000 miles without fault.

Regarding latest EU emission regulations for diesel engines, could you please give us more information on the subject of the particulate filters being adversely affected by repeated short journeys? I have...

Should I use a diesel or petrol car as a driving school vehicle?

I am a driving instructor and I do about 700 to 800 miles per week. My question is, would a diesel car be better for me? At first glance at my weekly mileage the answer would seem obvious, but here are...