THP 155 Engine Hesitation

[Chris]

My car still hasn't hesitated, after a few hundred miles! Also just switched from Shell regular fuel to shell V power as per recommendations from others on here & dealer

[FLP]

So, the day has endend, and I heard nothing from the dealership?! Yesterday I was told the car would be ready this morning and that they'd give me a call.. I find it very strange that they keep me in the dark. Not even a quick phone call to tell me they need the car a bit longer.. It goes without saying that I'm not amused..

[Chris_Blue]

Irritating, I know. Maybe they have encountered a problem and are trying to fix
They should tell you though

[FLP]

Just gave them a call. They were waiting for spare parts. Car will be ready later today. So, it seems they have found a problem, if they needed spare parts?

[Superfly Guy]

Just gave them a call. They were waiting for spare parts. Car will be ready later today. So, it seems they have found a problem, if they needed spare parts?

Shocking CS though, if they said it would be ready at a stated time, and it wasn't, it would make sense for them to notify you of this. Personally I would be vocal about this in the dealership, preferably when other customers are there, then never use them again.

[Chris_Blue]

Ask what the parts were FLP- it will be good to know

[Superfly Guy]

Ask what the parts were FLP- it will be good to know

Will be good to know if they changed any parts or just fancied taking the car home that night.

[FLP]

I've got my precious back! The "parts" they needed was product for cleaning the engine. There was "dirt" in it.. :-/ No word on how that "dirt" got there..

[Superfly Guy]

I've got my precious back! The "parts" they needed was product for cleaning the engine. There was "dirt" in it.. :-/ No word on how that "dirt" got there..

I think we all know how that 'dirt' got there, and exactly how it may return

[Chris_Blue]

Frequent oil & filter change methinks. Every 6 month, pretty much immaterial on how many miles would suggest
ED- Immaterial in relation to how few- max every 8000 would suggest
Glad all seems OK FLP

[Jonbays]

Dirt eh!
Well I will bet that what happened is that your engine is suffering from excessive carbon deposits in the inlet and on the inlet valves and they have just used a seafoam type product to clean it off or at least try to clean it.

Eventually you will be getting a walnut blast clean or cylinder head removal to do it properly I think.

I think we all know how that 'dirt' got there, and exactly how it may return

[Chris]

Alas ... My hesitation problem is back!

Been away for a few days, and during my journey on the motorway he car hesitated exactly as before it's "software upgrade" - safe to say I'll be on to the dealer first thing, see what they suggest!

[Superfly Guy]

Alas ... My hesitation problem is back!

Been away for a few days, and during my journey on the motorway he car hesitated exactly as before it's "software upgrade" - safe to say I'll be on to the dealer first thing, see what they suggest!

We know what the problem is, you know what the problem is, they will certainly know what the 'actual' problem is.

[Chris]

Last time I went in with the problem, I explained what I thought the problem was and took an info rapid in for cylinder head cleaning. They politely pointed out that it was for a different engine to mine! Even though I knew it was for the THP150 and mines the 155.

Any idea how else I can convince them to check this out? It begrudges me going and paying for the work done, when I have a car under warranty with Citroen.

[Superfly Guy]

Last time I went in with the problem, I explained what I thought the problem was and took an info rapid in for cylinder head cleaning. They politely pointed out that it was for a different engine to mine! Even though I knew it was for the THP150 and mines the 155.

Any idea how else I can convince them to check this out? It begrudges me going and paying for the work done, when I have a car under warranty with Citroen.

I'm pretty sure the engine isn't that different but the symptoms are the same. You certainly shouldn't have to pay for anything, however I suspect you are on a well trodden path which will result in them trying various options that will ultimately prove futile.