Wynn's Diesel Turbo Cleaner - Removes Carbon Build-Up & Frees Sticking Vanes - Cleans Diesel Oxidation Catalyst & EGR Valve - Restores Engine Power & Reduces Soot Emissions - 500ml

I was a little sceptical about using this but this really helped free the sticky veins in the turbo!! No more overboost pressure errors.

Definitely improves power and mpg of car but not straight away , you need to fill up the full tank with fuel and pour whole of it in that. Need to run the car for atleast 100 miles to see the response . Improves the throttle response and pick up of the car from stand still point . Must use it in every third full tank of fuel .

This product is good to maintain a clean engine. But if you have turbo issues, then this product is not going to fix it, especially if the VNT mechanism inside the turbocharger is blocked with carbon. All you are doing is wasting money and delaying the inevitable. Once you have a new turbocharger then this stuff is good to prevent build up of carbon all thanks to your EGR valve "emission crap" get your EGR deleted and now issues ever.

This actually works. Vw Scirocco 2.0 tdi 170. Threw a p0299 under boost code when n75 valve kicked in. No air leaks found. New actuator fitted still the same code.Thought it could be a sticky vanes in the turbo or stuck waste gate so added some of this. After around 20 miles and around 30 mins of idling the light went itself and power restored!.I would of brought a new turbo or took it apart, but no need with this stuff! Give it a try for the money

Have a Mercedes GLE which had only been doing short city trips for the 6 months of winter.The engine light came on, then went, but the car kept on going into limp mode.Mercedes replaced the Mass Airflow Sensor at considerable expense, but the problem persisted.Rather than replace the turbo at even more eye watering expense (and only 65000 miles) I decided to give this a try, as what was there to lose.I suspected the turbo vanes were sticking due to soot build up.I put this in half a tank (93 litre tank) of BP ultimate diesel, and then went on a 200 mile motorway trip with the odd occasional Italian tune up.It pours easily into the tank, and the long nozzle allows bypassing of the anti siphon trap.So far it seems to have sorted the problem, although it may just have been the motorway trip clearing everything out.No more limp mode at present, and the car seems to generally run smoother now.The additive didn’t seem to make the car run differently whilst in the tank, but seems to have sorted the problem.Will be using every few thousand miles as recommended from now on.Wynns is a trusted and well know brand and has been around for a long time.

havent been on a long run yet but can notice a differance pulls better

1. This is for the Black Bottle, Wynns Professional Turbo Diesel Cleaner2. The Professional version comes in 500ml, the normal retail bottle comes in 325ml, both are good.3. I have a 2015 BMW 520D M Sport Auto. The car performed well before the Turbo Diesel cleaner, I emptied the contents of the bottle into the tank, and filled the tank to full.4. After about 80 Miles I started to see a noticeable difference in responsiveness of the car. Not an imagined difference, a real difference, I could honestly feel it. It made a good car better.5. I like that it also cleans the EGR valve without the need to take things apart to spray something into it. I suppose that's not applicable to a car that's broken down due to the EGR valve clogging with carbon, but as a routine maintenance for one that's not I think this stuff is good for both the Turbo and the EGR valve.I use this periodically, every 3rd tank. I do as follows Tank 1: Redex Injector Cleaner (cheap at tesco when half price) Tank 2: Redex DPF Cleaner (Same reason) Tank 3: Either Wynns Professional Diesel Turbo Cleaner or the normal purple 325ml bottle (both are good)... all 3 of these cleaners work well, and my car never breaks down (it's also serviced routinely)Think I'm wasting money? Think you won't bother? Well, let your Turbo Vanes get heavy with Carbon Deposits and the solenoid motor work harder till it burns out and your car goes into limp mode in the middle of the motorway (not it didn’t happen to me, because I learned from other people’s mistakes, that’s what smart people do) , and when your Turbo fails and the garage wants a grand or more for a new turbo and your car’s off the road for a few days, with no courtesy car given due to no facility to clean it to Covid levels… then you realise not keeping the Turbo clean is a false economy. Better to pay a little extra now regularly than have the hassle of the aforementioned later. Same goes for the DPF Cleaner and Injector Cleaners... and the added bonus is you get to drive a car that performs as well as it should, it feels like a new car to drive once everything's cleaned out.

Cleared engine management light with in 20 miles after placing in fuel tank