TDI Tuning Reviews 

I purchased a box for my Mercedes A Class. Upon installation the engine management light immediately came on but I was reassured this was normal. Initially I notified a performance gain, but this didn’t last long. A couple of days after the initial engine light went off I started having numerous problems with the car. It wouldn’t accelerate past 20mph, it wasn’t smooth to drive anymore, faults with the abs system, the steering was heavy. I went to the garage numerous of times and paid hundreds in diagnostics and repairs. Finally they advised me it also needed replacement swirl flap diffusers… aka engine damage. The garage told me to sell the car as soon as I possibly could. So I had to sell it not even 6 months after purchase causing significant financial loss. TDI Tuning? They asked me to re-install the box back into the car to show them the issues and refused a refund as the box was only under warranty for repair. Avoid at all costs.

Edit - How can I send the tuning box back for inspection / fixing when I had a car that no longer works? You asked me to fit the box back to a car I didn't have and that didn't work...

The email was as follows:
Hi Jessica
Our 5 year warranty covers any repairs, Updates etc on the tuning box throughout this period however a refund is not possible as we operate a 30 day money back guarantee.

I am confident we can get this resolved for you here.

Kind Regards,
Jake

Overall a good experience with TDI Tuning. When my first unit went missing in transit, they acted quickly and made sure I received a replacement without delay. The box works well and I’m happy with the outcome.

The only slight disappointment was that no help was offered with fitting or a goodwill gesture like Bluetooth activation, which would have been a nice extra touch. Still, their professionalism and fast resolution of the delivery issue stood out, and I’d recommend them.

Customer service is excellent.

Very easy to deal with and efficient!
I was able to re-purpose an existing unit on another car. The new wiring harness arrived quickly and updating the firmware on the unit was easy with simple instructions provided to follow. Very impressed overall and I wouldn't hesitate to recommend TDI Tuning!

From start to finish customer service was flawless. Phone contact with TDI put me right at ease. Decided to have it fitted in house for an additional £25. Was done in less than ½ an hour. Transit drives faster when fully laden than when it was empty before.
Cheers to all at TDI tuning.

Seems to work. Easy to install

The tuning module arrived in the mail quickly especially coming from England to Australia.
I have noticed a good improvement in both performance and economy. However without using a dyno I seriously doubt the horespower and torque figures claimed. Having said that I'm not unhappy with what I got for the price.

Customer service and the attention to customer satisfaction. Swift handling of my order and being helpful with my questions.
I just would like the company to include the recommendations into the instructions

really quick delivery, nice and easy instructions to follow for installation. unit works well.

Fantastic product that lives up to all of TDI Tuning's claims. My CRTD4 Twin Channel Diesel Tuning Box Chip Kit with Bluetooth connectivity was ordered & delivered quickly, easily & with parcel tracking.
Comprehensive instructions were supplied with the kit for my 2.2l turbo diesel Santa Fe boosting power from 147kW to 194kW, torque from 440Nm to 524Nm & with a fuel efficiency increase of up to 20% depending on the bluetooth adjustable settings, ranging from 1 (max economy) to 7 (max power & torque) with the press of a few buttons.
Installation took less than 1/2 hour with the most complicated bit being disconnecting a factory fitted sensor to plug in the kit sensor. The instructions were comprehensive, clear & with photos for guidance. Plus help from the TDI engineers was only a phone call away if I couldn't figure it out. The rest of the install was simple.
Power & torque gains were really impressive when testing after installation & I was surprised at the increases in acceleration. For my better half when she drives I leave it on Setting 1, for myself I crank it up to Setting 7.
Great fit & finish of the kit & easy to remove when going in for a yearly service. Would recommend to anyone - this definitely lives up to it's hype. Great job TDI Tuning!

5stars all round thank you great service quality product works great

Fitted to my 2019 Cupra Alteca
Comes well packaged and Instructions are very clear and in theory it is easy to fit, only snag I found was one of the connections was at the underside of the engine at the bottom of the radiator and had to partially remove the undertray to reach the connection which was quite fiddley. Everything else was simple to fit.
I brough this to help with fuel Economy more than anything else, I spent quite a bit of time changing the modes (1-7) to see which brought the best results. For me mode 3 was best for Economy bring less than 30mph up to 35mph average on long runs.
Mode 7 seems to be nutcase mode where in Cupra and sport mode the thing takes off !!
Overall very impressed and would by again.

great product, that did make a significant difference to the performance of my VW Transporter (T6.1) i would defiantly recommend this to others, only niggly thing was i would say is its not easy to reach some of the connections, you had to fit them by touch as you could not actually see the fittings

Swapping my tuning box from a GR Yaris to a GR Corolla. Support was great and delivery of a new harness very prompt.

The team at TDI were extremely helpful and informative once we sorted couple of bugs out they were extremely responsive, 4 days for a package from England to my doorstep in Melbourne excellent service. And their product actually works very well, well done and thanks guys Geoff C

Great product and straight forward installation following the comprehensive instructions.

Excellent product. Easy to fit. Customer Services were very helpful. All round a good experience.

Great buying experience for my TDI tuning chip. Fast shipping to US. Extra care that was taken to validate I had the right chip for my vehicle since there are multiple configs. Smooth transaction and real performance gains from my car. App is easy to use can lag a little connecting via Bluetooth but all and all I would do it again. 5 stars

Excellent customer service, very knowledgeable and accommodating staff. The product is first class and transferable to various vehicles with minimal fuss and expense.

Great bit of tech. My car is transformed (Golf R) really amazing performance and improved fuel economy as a bonus….unless you use the full power available all the time! Torque improvements is noticeable and it makes the car even better than it already is.