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Hi all,
Im sure someone on here can advise me on this....please
My wifes THP 155 has done only 12000 miles (63 plate) and already its showing signs of carbon build-up. Its been to Citroen and they have said that it needs driving harder, to put Super Uleaded in it one every 4 or 5 times we fill up and then see how it goes.
Background: The car went into melt down and broke down on the motorway about 2 months ago and a sensor was swapped - it said "OVERHEATING - STOP!!" on the dashboard. Two weeks later a recall went out for owners to get their sensors checked. Everything was OK up until this point (from new until about 1 year 16 months old) although it was a bit 'lumpy' form time to time. It had trouble starting etc sometimes. I thought this was a build up to the sensor fault or the sensor was messing up the mixes making it run badly.. Maybe two different issues or maybe they are related I dont know.
Once the sensor was swapped, it was still lumpy so it went back in to Citroen and they cleaned up the spark plugs. 6 weeks has gone by and we took it in again for being lumpy on idle. They said its all clean excep the spark plugs needed cleaning again and its then they advised on better using better fuel and revving it more.
I understand from reading other posts that its a 'dry' style engine and so you get build up of carbon in the air intakes etc., but will using better fuel make any difference to the spark plugs and stop them gumming up?
I am by no means a car buff by any stength of the imagination...I know they have 5 wheels
.....but I did question citroen and they said the air intakes were clean. It seems it IS just the spark plugs that have the issues, or at least thats what they tell me.
I can only go on what they advise, but its got a year left on the 3 yr deal and I was thinking of buying it at the end of the term, but this issue is becoming a bit of a pain in the bum so Im not sure at the moment. Its better financially to buy it, but only if I can stop it going lumpy all the time.
I have read about jamie and walnut blasting etc., but it doesnt seem that we're at that stage yet.
So really what Im asking is...shoud I.
1 - Just use super unleaded all the time, or use it just some of the time as Citroen have said.
2 - Rev the car more (my wife does keep the revs under 4000rpm generally and only does 20 min journeys to work and 20 mins back, although that does include some motorway). Will this make a difference or just wear other parts out quicker.
3 - If the car is left being lumpy e.g. dirty spark plugs - does this damage the car? Will it enventually breakdown again, or does it just reduce power and mpg as the car cant 'breathe'
Ultimately I wasnt to know how to stop the spark plugs becoming a problem every six weeks, and if what Citroen have said will actually make any difference or not.
Any advise greatly appreciated.
Cheers,
Im sure someone on here can advise me on this....please
My wifes THP 155 has done only 12000 miles (63 plate) and already its showing signs of carbon build-up. Its been to Citroen and they have said that it needs driving harder, to put Super Uleaded in it one every 4 or 5 times we fill up and then see how it goes.
Background: The car went into melt down and broke down on the motorway about 2 months ago and a sensor was swapped - it said "OVERHEATING - STOP!!" on the dashboard. Two weeks later a recall went out for owners to get their sensors checked. Everything was OK up until this point (from new until about 1 year 16 months old) although it was a bit 'lumpy' form time to time. It had trouble starting etc sometimes. I thought this was a build up to the sensor fault or the sensor was messing up the mixes making it run badly.. Maybe two different issues or maybe they are related I dont know.
Once the sensor was swapped, it was still lumpy so it went back in to Citroen and they cleaned up the spark plugs. 6 weeks has gone by and we took it in again for being lumpy on idle. They said its all clean excep the spark plugs needed cleaning again and its then they advised on better using better fuel and revving it more.
I understand from reading other posts that its a 'dry' style engine and so you get build up of carbon in the air intakes etc., but will using better fuel make any difference to the spark plugs and stop them gumming up?
I am by no means a car buff by any stength of the imagination...I know they have 5 wheels
.....but I did question citroen and they said the air intakes were clean. It seems it IS just the spark plugs that have the issues, or at least thats what they tell me.I can only go on what they advise, but its got a year left on the 3 yr deal and I was thinking of buying it at the end of the term, but this issue is becoming a bit of a pain in the bum so Im not sure at the moment. Its better financially to buy it, but only if I can stop it going lumpy all the time.
I have read about jamie and walnut blasting etc., but it doesnt seem that we're at that stage yet.
So really what Im asking is...shoud I.
1 - Just use super unleaded all the time, or use it just some of the time as Citroen have said.
2 - Rev the car more (my wife does keep the revs under 4000rpm generally and only does 20 min journeys to work and 20 mins back, although that does include some motorway). Will this make a difference or just wear other parts out quicker.
3 - If the car is left being lumpy e.g. dirty spark plugs - does this damage the car? Will it enventually breakdown again, or does it just reduce power and mpg as the car cant 'breathe'
Ultimately I wasnt to know how to stop the spark plugs becoming a problem every six weeks, and if what Citroen have said will actually make any difference or not.
Any advise greatly appreciated.
Cheers,
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