Removal of diesel particulate filters

MQT on 2017-01-18
Session date: 
January 18, 2017
Question By: 
Caroline Russell
City Hall Greens
Asked Of: 
The Mayor


How many vehicles with illegally removed diesel particulate Filters (DPFs) have the Roads and Transport Policing Command apprehended? What action was taken against the owners of these vehicles?


Answer for Removal of diesel particulate filters

Answer for Removal of diesel particulate filters

Answered By: 
The Mayor

The police do not have the specialist mobile analysis equipment which would enable enforcement of this offence at the roadside.  A visual inspection would not identify such vehicles.

MOT testing however would identify the fault and result in an MOT test failure, and police may be called to assist other organisations in their investigations such as those by Trading Standards and/or the Driver and Vehicle Standards Agency (DVSA). 

You may want to contact the Department for Transport for further information on the number of vehicles caught without a DPF.