Should we idle our turbo after a motorway journey?

I understand the issue with red-hot turbos carbonising the oil if they are switched off immediately after a motorway journey, especially with diesels like ours. How long should they be idled before switching...

Should I idle the engine of my petrol car after a long run just like you advise for turbo diesel owners?

You have wisely advised owners of diesel turbo cars to idle the engines after a fast run before switching the engine off. Is the same advise also applicable to petrol TSI cars, such as the Volkswagen Polo...

Why is the idling irregular when my 2003 Vauxhall Zafira starts up from cold?

After 140,000 miles of reliable use, my wife's 2003 Vauxhall Zafira 2.0 DTi is misbehaving. At temperatures below 8c it starts instantly and fast idle is fine but as it warms up and the idle speed drops...

Stop/Start with a turbo engine - problems?

I am interested in buying the latest Ford Focus Titanium with the Turbo 150bhp engine has STOP technology. If as is suggested by Honest John Turbos must be idled after running at speed to allow them to...

Citreon Saxo 1.4 Westcoast Poor running and Idle problem. Reving up and down

My son has a 1.4 Citreon Saxo West Coast. Two weeks ago it developed a fault with the engine revving higher than normal. It was plugged in and no fault found. Since then, all sensors have been removed...

Engine Problems

I have a Fiesta Mk IV Zetec 1.25 Ghia 1999 (T Reg). I seem to have two problems and I am not sure if they are related or not. Problem 1 - The car has developed a fault where it 'judders' when under acceleration....

Do superchargers get as hot as turbos?

Does your advice on turbo charged engines also apply to super charged engines? I am referring to leaving them idle for 10 seconds before driving off and leaving the engine idle for 30 to 120 seconds after...

Rough idling Audi A4

I have an ageing (53 plate, 120,000 mile) Audi A4 1.9 TDI. It has been a great car but over the past few months the idle has gone "lumpy" intermittently. Above idle it runs smoothly, there is no loss...

Idling problem with a 1997 Audi A4

I have an Audi A4 2.6 and it has done 207,000miles. I had been fine for ages but over the last 500 miles it's got a problem with revving up to 1500rpm on start up. Then it was reving 1500 to 1800 and bobbing...

Rough idle on a Peugeot 406 HDI

My 406 hdi has a rough idle. When I rev it up it seems fine - a little misfiring, but soon it hits the turbo and it's OK. It feels almost like it's running on 3 cylinders on tick over. A friend has done...