So driving along in my 2015 sport which has just come back from the garage after a oil cooler leak - suddenly blue smoke came pouring out of the exhaust so pulled in, reved the engine a couple of times to see if the smoke dissipated - the engine suddenly red lined even though my foot wasn't on the accelerator, tried turning the engine off with the engine start button - no joy - after about 5 seconds of maximum revs the engine stopped with a bang and clunk - and smoke came pouring from the engine - the first recovery guy though the turbo had blown and the second said the engine had blown - its now outside our house - not knowing what to do next (4.4 autobiography). Any thoughts, am I ?? 2016 Range Rover Sport SDV6 autobiography (MY17)
2017 Range Rover Velar First Edition SDV6
2015 Range Rover Sport Autobiography 4.4
2012 Range Rover Sport SDV6 HSE Luxury Black

Sounds like a diesel runaway eating its own oil. Given the recent oil cooler work I’d be going back to the place that did the work. Gone: 10MY L320 RR Sport HSE, Ipanema Sand
Gone: 20MY Jaguar iPace HSE, Silicon Silver
Gone: 17MY RR Evoque SE Tech, Loire Blue
Gone: 08MY Discovery 3 XS, Stornoway Grey
Gone: 07MY FFRR TDV8 Vogue, Stornoway Grey

Yes does sound like a runaway, have you had the DPF light on much

no dpf light at all since ive had it 2016 Range Rover Sport SDV6 autobiography (MY17)
2017 Range Rover Velar First Edition SDV6
2015 Range Rover Sport Autobiography 4.4
2012 Range Rover Sport SDV6 HSE Luxury Black

Turbo failure, I expect...

Would that cause a runaway? Gone: 10MY L320 RR Sport HSE, Ipanema Sand
Gone: 20MY Jaguar iPace HSE, Silicon Silver
Gone: 17MY RR Evoque SE Tech, Loire Blue
Gone: 08MY Discovery 3 XS, Stornoway Grey
Gone: 07MY FFRR TDV8 Vogue, Stornoway Grey

Disco_Mikey wrote:

Turbo failure, I expect...

You won't know until it has been assessed

However, as it stopped with a clunk and a bang, I fear the worst...

What’s a diesel runaway?

Friend of mine had an Isuzu pick up, it would re gen the DPF a lot which resulted in to much diesel getting in the oil which can cause run away on the engine, Isuzu would put another mark on the dip stick and if your oil level reached that mark you had to change the oil, at the time I had the same vehicle with the same problem, I sold mine after that, one of the reasons I brought a petrol Range Rover.

Johnrrs wrote:

What’s a diesel runaway?

Wow, scary stuff. It’s enough to put you off buying a diesel………

Disco_Mikey wrote:

You won't know until it has been assessed

However, as it stopped with a clunk and a bang, I fear the worst...

Do you have any sort of warranty on the car?

Let’s hope it’s not runaway, which would be the worst case scenario, my l494 sport is the petrol supercharged, I have had my share of problems with it to be honest , currently got a bumping sound sometimes from the back somewhere . I wish you luck with your diagnosis.
Chris.