My 07 GS has this reduced engine performance fault only in cold weather,its absolutley perfect in other conditions, but in the last couple days it has cut out and stopped when going up hill, this has happend twice. According to my servcice receipts the fuel filter has never been changed, ive bought one today. Did a bit of reasearch, could it be the wax thermostat in the filter failing in cold conditions causing this to happen.
Many thanks for any reply.

A quick search throws up lots of threads and symptoms that can cause the problem. Certainly bad fuel or a clogged filter will cause problems but so can many other things.
The fact it has happened going uphill provides some clues, ie you will be calling for power, lack of fuel at that point will cause an issue.

Have a read through all the threads and see if anything similar pops up.
Good luck with it and welcome to the forum

charlie66 wrote:

My 07 GS has this reduced engine performance fault only in cold weather,its absolutley perfect in other conditions, but in the last couple days it has cut out and stopped when going up hill, this has happend twice. According to my servcice receipts the fuel filter has never been changed, ive bought one today. Did a bit of reasearch, could it be the wax thermostat in the filter failing in cold conditions causing this to happen.
Many thanks for any reply.

The filter could always be clogged if it's been doing it's job. Depends what crap and water has been in the diesel you've been using. 2002 Honda VFR800
2002 Toyota Celica 140 Silver (mid life crisis - again!)
2007 FL2 GS Manual Army Reconnaissance Green + freel2.com sticker
2004 Toyota Celica 140 Black - Gone
2000 Toyota Celica 140 Silver - Gone
1998 Toyota Celica ST Pearl Green - Gone
1996 Nissan Primera 1.6 - Gone
1994 Rover Montego 1.6 Auto - Gone

Changed filter this afternoon, test drove up a couple hills accelerated hard, now running well, no fault messages.As for priming filter i turned up a brass connector fitted it to a pipe and bottle , connected it to the filter and it filled up no problem, then connected all pipes turned on ignition once, then started after, no problem at all.Very happy bunny lol.

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any pics of the priming method/tool you made .I fancy changing my first diesel filter soon but its the priming bit i am not too sure about

this is the only fault I have yet to get LoL

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Hang about!!

Quite a few filter problems coming up this week. Remember that if the filter has water in it then yes it will freeze and clog.

Had my filter changed today,after symptoms similar to previous posters. The guy who did it used the 'fill everything up with a funnel' method and it fired straight up. Cost? £34.00 (Unipart) filter £30 labour.
Mine started playing up on the journey home after buying it, the new filter has transformed the car. The only problem is SWMBO ,who will be the main user, hasn't got any confidence in it,so I could be a very fleeting poster on this site! Let's hope the snow sticks around for a bit longer and nothing else happens to put her off.

Sounds like a full service might well be in order. If the seller claimed to have serviced it, I would be sending him a bill.

ive had the car from new , looking back the filter has never been changed. I contacted an independant dealer and explained the fault , his reply was we can look at the fault codes but doubt we can fix it . being an engineer i cant let it go so researched problem and fixed it , and as for buying special tools what absolute rubbish