i accelerated when joining motorway and noticed yellow glow plug light on and loss of power i pulled in and switched off and then back on waiting for all lights to go off before starting engine and then it was ok so what caused this to happen in the first place???

 

Welcome, please follow the instructions on main page for new member introduction and also going to your "CP", = user control panel, listing your automobile information on the left side about 1/2 way down under "signature". This helps members in knowing, year, model, fuel type, etc. to better help you.

That being said, your home looks like it's in Europe, so assuming you have a diesel X Type, do a search (main page, top tab, for "Mr. Muscle" fix, or "flashing glow plug", same result. About 90% of the time, this is the problem fix.

 

Hi had the same problem with my 2.2d x type and after wasting quite a lot of money on turbo cleaners and fuel additives I followed the link on the forum drilled a hole through my turbo casing sprayed me muscle foam and bingo! 20 minutes later no more sticky vanes flashing glow plug or error messages. £2 for Mr muscle and half an hours work removing the heat shield drilling and tapping the hole then sticking an m8 bolt through with a copper washer to reseal it