How To Fit

Easy to fit DTUK tuning box

How to Fit DTUK Tuning Boxes & PedalBox

We pride ourselves on supplying systems that are as simple to install as possible. Virtually all our kits can be fitted on your driveway with little mechanical skill required. All you need is to be able to follow our clear instructions that include detailed photographs of the actual engine bay. No stock images or generic text.

We are just a phone call away should you have any issues, and we will contact you before despatching your order if your particular system is slightly more complex, so we can make you aware of any awkwardly located sensors.

We know what it’s like when your new system arrives — you want to fit it and start enjoying it as soon as possible.

Below are example installation guides and videos so you can see how the fitting process works.

Installation Videos

For a wider selection of installation videos, please click here

Request Fitting Instructions Before You Buy

If your vehicle is not listed below and you would like to see what is involved in installing a DTUK system, please email [email protected] with the subject line PRE PURCHASE FITTING INSTRUCTIONS REQUEST.

Installation PDF Downloads for Diesel Tuning

Installation PDF Downloads for Petrol Tuning

Please note that systems released from early 2018 onwards no longer require a 12V power supply. If this is mentioned in any of the older examples below, please ignore it. The correct up-to-date instructions will be sent with your order.

Online Installation Guides

DTUK tuning box installation

Some general advice on how to use the DTUK box correctly and find your optimum setting

We want to share as much information as possible so the correct procedure is followed when setting up your DTUK system. If you ignore this advice and then experience an engine light or other issues due to over-adjustment, it limits what we can do to help.

A sticker is placed on the module because 99% of users don’t read the instructions and simply turn the box to the highest setting, then wonder why an engine light appears. We use a simple analogy: “If you turn your toaster up too high you will burn your toast.” The same principle applies here — over-adjusting can push the system beyond the manufacturer’s safety tolerances.

Please ignore “best setting” claims you may read online. Even identical cars can behave differently due to software versions, sensor tolerances, fuel quality and ambient temperature. Treat your vehicle as unique.

Basic operation:

  • The module needs power — ignition in the first position or the engine running — before you can make adjustments.
  • Flashing LED lights mean the box is locked. Hold the + and – buttons together until the lights become solid, then make your changes. It will lock again after a few seconds of inactivity.
  • If you can’t feel any difference, check that the module is not switched off. Three LEDs (Red, Yellow and Green) flashing under the P button usually means it is off.

Push Button Control Systems
Most systems have 3 programmes. Peak power figures are usually similar; what changes is how the power is delivered across the rev range. Start with P1, P2 and P3 on the base setting (0 or +1) to feel the difference, then fine-tune. Higher than +1 can trigger an engine light on some vehicles. Minus settings (-1, -2, etc.) can sometimes give surprisingly good results.

PDI & PD2 systems
These have 4 programmes — the same principle applies.

Red Power, Green Eco3 & MP2 systems
These use a potentiometer with settings 1–9 and A–F (1 lowest, F highest). We supply the module on a suitable base setting. Increase gradually. If an engine light appears, reduce the setting.

Engine Management Light
If a light appears, don’t panic — it usually means the setting is too high. Turn the system down and the light will normally clear after a few ignition cycles or a full ECU power-down (lock the car and leave it for 20–30 minutes).

The small black blanking plug supplied with many kits allows you to return the vehicle to stock while leaving the harness in place.

Bluetooth Applications
Legal notice: Using a smartphone while driving is not permitted in many countries. Please comply with local laws.

For the best Bluetooth connection:

  • Position the module so the keypad faces towards the driver or upwards.
  • A phone mount on the dashboard or air vent usually gives the strongest signal.

All we want is for you to enjoy the product. Every car is unique, so a little trial and error is normal when finding the perfect setting for your vehicle and driving style.