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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 

Posted

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

Posted
  On 2/21/2024 at 8:54 AM, 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

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