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The Engine Tuning Performance Specialists

VW Golf 2.0 170 DPF Removal – Tuning & Remap



DPF Problems?

otherparas_740 Given the DPF is a ‘service item’ that is to say it has a certain life span and will, like every other filter in the car, need replacing at various intervals.

Once the filter is completely blocked, the dashboard will show warning lights, and the car will slip into ‘limp mode’ (the speed you can drive at will become limited to protect the engine).

The only qualuity filters available at present are those supplied by the manufacturer backed dealerships who charge substantial prices for the supply and fitting based on their workshop hours.

The DPF is now an MOT test item, where fitted as standard by the manufacturer

Diesel Decat / DPF Removal

It is fully legal to remove the catalytic converter from a Diesel Car and it will not raise any issue at MOT time. VOSA, who run UK MOT testing have confirmed this with us. This also applies to DPF (Diesel Particulate Filters), which are not even mentioned in the testers manual.

In January 2012 there was a regulation change for cars that require an emissions test where ‘if a cat was fitted as standard, it must be there for the MOT’. Diesel cars are not required to pass this emissions test, so that regulation doesn’t apply. There are no further emissions related changed expected in the near future and any changes to emission tests are unlikely due to the massive cost to the MOT stations.

MOT Test of Exhaust Systems and Emissions

Test Description

The exhaust system will fail the MOT if:

Part of the system missing or excessively deteriorated
Mounting are missing or damaged so that the exhaust system is insecure
There is a major leak
The system emits appreciably more noise than a similar vehicle fitted with a standard system in good condition.


These are checked using specialised equipment, the details of the check depending on the year that the vehicle was first used on the road. Excessive smoking (checked visually) is a reason for failure.
Diesel smoke emissions are checked by using a smoke meter.

TO BOOK IN…01295 758739

Booking in is a very simple process, just call 01295758739 or email us at

We will need the car for two days, with enough fuel for a 60 mile road test that will be required to make sure the job is 100%

Courtesy Cars are available at no extra charge.

All major credit cards are accepted.