Why is my Ford Mondeo TDCI producing blue smoke?

I have a 2.0-litre 2002 Ford Mondeo TDCI 130BHP and had a message saying 'P2339 Cylinder #4 above knock threshold' on the ECU diagnostics check. The car starts fine, but is giving off a lot of blue smoke...

Why doesn't my KIA Sportage's warranty cover diagnostic checks?

I bought a secondhand KIA Sportage 2.0 CRiXS Auto in April 2008 and extended the warranty in Nov 2008 for a further two years. Last week, an indicator light showing 'Malfunction' came up with the word...

How do I clear a fault code on my 2004 Vauxhall Vectra?

I have a 2004 Vauxhall Vectra diesel and the engine light is on. The car wouldn't rev above 2500 rpm and I took it to a garage to plug it into a computer. It came up with a biometric sensor fault. So I...

Why won't my friend's Ford Focus start?

My friend has a 54-plate Ford Focus TD. He stopped the engine one day and it has not started since. That was six weeks ago. Up to now, six fitters have looked at it and don't know what it is. The car just...

Is £2000 excessive to repair / replace the hydraulic unit in my BMW 118d?

I was notified of a fault with the DSG system on my BMW 118d (77,000 miles), by a warning light on the dashboard. I had this checked by a local BMW specialist who diagnosed the problem as a faulty hydraulic...

Where can I find the computer terminal on my wife's 1997 Citroen Saxo?

I need to get a diagnostic test done on my wife's old 1997 Citroen Saxo as it is running very badly, but my local garage can't find a computer point. The workshop manual says that it should have one somewhere...

Will Renault contribute to a throttle valve repair on my 2006 Grand Scenic?

I have a 56 Renault Grand Scenic 1.9DCi (FAP) with 27,000 miles. This is not about the FAP and regeneration - I've been there and got the T-shirt (and won't be buying a car with an engine such as this...

Who is to blame for the misdiagnosis of an airbag fault?

A few weeks ago the airbag warning light in my 2004 Audi A3 2.0 TDI came on. I took it to an independent Audi specialist for diagnosis, hoping it would just be a sensor or something else minor, as the...

My Volkswagen Touran's ESP light is on - what should I do?

My Volkswagen Touran has the ESP dashboard indication on and the ESP button lit up all the time. What is my best first move for this?

What's causing our Citroen C5's air con to blow hot and cold simultaneously?

My Citroen C5 2.2 HDi 2001 model's air conditioning blows hot air on the passenger side and cold air on the driver's side when the temperature is set at low on both sides. Any ideas?