Can I remove the DPF from my car?

Are DPFs a legal requirement? What do you think of ECU-Flash's DPF removal service, please?

Asked on 21 December 2013 by SW, via email

Answered by Honest John
DPFs are an EC legal requirement, yes. According to the relevant government document:

“It is an offence under the Road Vehicles (Construction and Use) Regulations (Regulation 61a(3)) to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet. Removal of a DPF will almost invariably contravene these requirements, making the vehicle illegal for road use. A vehicle might still pass the MoT visible smoke emissions test, which is primarily intended to identify vehicles that are in a very poor state of repair, whilst emitting illegal and harmful levels of fine exhaust particulate.”

Removing DPFs is therefore technically illegal. It could also constitute tax evasion because your car will no longer comply with its certified CO2 emissions. But VOSA in the UK has not yet found a way of enforcing this law. If VOSA enforces the law your car could get a prohibition notice until the DPF was replaced.
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