Particle filter

[Davison]

What is the best way to correct this problem ,PARTICAL FILTER  warming message has came up on dashboard inside my 4 series grand coupe 2 litre petrol 

[Greydog]

Morning Kevin

Welcome to the Forum

Not seen this on a petrol model yet seen quite a few diesel though, as your car is only 4 years old unless it has covered more miles than the star ship Enterprise a blocked DPF/Cat is unlikely.

A diagnostic session should find the culprit quickly, my guess would be a sensor gone wrong. If you don't have your own diagnostics a good garage with a BMW capable system can do it. Or if you have an extended Warranty with BMW use them

The Differential Pressure sensor  sits on top of the DPF/Cat so should be fairly easy to reach

Hope this helps

Dave

[Davison]

10 minutes ago, Greydog said:

Morning Kevin

Welcome to the Forum

Not seen this on a petrol model yet seen quite a few diesel though, as your car is only 4 years old unless it has covered more miles than the star ship Enterprise a blocked DPF/Cat is unlikely.

A diagnostic session should find the culprit quickly, my guess would be a sensor gone wrong. If you don't have your own diagnostics a good garage with a BMW capable system can do it. Or if you have an extended Warranty with BMW use them

The Differential Pressure sensor  sits on top of the DPF/Cat so should be fairly easy to reach

Hope this helps

Dave