So what is causing these TDV8 turbo failures in your opinion DM ? I have read many theories, some of them stack up, but do we know the real reason?

My theory is not allowing them to warm up and cool down properly

An old car of mine, Mk1 Fabia vRS, were apparently quite common for turbo failures.
Mine was not driven hard until everything was hot, always driven gently for the last few miles of any journey, and always got a good 60 second idle before switching off. As well as a good hard booting every now and then

Never had any turbo issues, even with a remap on it

I hope you're right - I was always gentle with mine when cold although I didn't leave idling as often as perhaps is ideal. Following my turbo failures, I now have a BAS FBH remote; I start this every morning before getting in the shower so that the coolant (and hence the oil to a degree) is warm. A gentle first mile to allow that warmth to get everywhere is followed by 60 seconds of idling before switch off. Longer idling if I've been on the motorway for a period of time. Fingers crossed that this is sufficient insurance against a further failure.

I'm still convinced the issue is to do with the placement of the turbos in the engine bay and the need to have a supplementary oil scavenging system for them. The TDV8 is too big for the engine bay really. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

The lack of external cooling may also be a contributing factor, but only emphasises the need to warm up and cool down correctly

Thanks guys.
You will be surprised how long it takes to get your engine oil up to temp. I have an oil temp gauge in my P1, and on a day like today, 30c it still took 5 miles of B roads and approx 15 mins to get up to normal running temp. That was off boost all the time. I have always been mechanically sympathetic with all my turbo'd vehicles. Warm up before any boost, cool down after every run. I have never had any problems with any of my vehicles.

Has anyone ever fitted a turbo timer to their RRS?

I used to have a little 1.3 Toyota Starlet Glanza Turbo when I was 19 and it was fitted with one by the previous owner.

As above always take it easy till temp is near normal and always let it idle for a minute or so, don't arf get grief from the Mrs !! But I'll do anything to help look after the engine/ turbo's
I have a mate who owns a Scubi ipresa with a turbo timer and as above was wondering if anything similar was available for the RRS's 2008 G4 RRSport TDV8 current
2009 TDCi 90 current
2018 Discovery 5 HSE lux current
1994 Dakar current

Ady 555 wrote:

Thanks guys.
You will be surprised how long it takes to get your engine oil up to temp. I have an oil temp gauge in my P1, and on a day like today, 30c it still took 5 miles of B roads and approx 15 mins to get up to normal running temp.

Certainly won't do it any harm

Not too sure about the TDV8, but there is a n engine oil top in engine management, and gearbox + engine oil temp in transmission

One other the reasons to turn-off the "Stop-Start" function.

Disco_Mikey wrote:

Not too sure about the TDV8, but there is a n engine oil top in engine management, and gearbox + engine oil temp in transmission

I upgraded my IID to ver 3 t'other evening and this morning had another look. As you say, there is now an engine section that wasn't there in ver. 2.18. Great stuff in there. Sadly, this showed the engine oil temp to be only 25degC after 30 mins of FBH at ambient 11degC where coolant temp is at 71degC. That's a lot less than the previous one showed. I left it showing and it got to 55degC within the first mile of gentle driving so not too bad.

I keep thinking of getting a BT version of the IID but I'm about to change tyres, get an MOT and a service is looming soon too so I'm avoiding excess toy-fund spending this month...  2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Speak to Patrick at Gap. He can advise on upgrading to the BT version, and a greatly reduced cost over a new unit

Just bought a 12 RRS HST TDV6 a few weeks back. Really happy with it. Just curious to know is it just the V8 turbo giving most trouble or is it the V6 also?

The TDV8 suffers more from turbo issues than the TDV6 do it seems.  2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed