If the error described above occurs in conjunction with the following list of fault codes, a possible cause is clogged/blocked EGR channels (exhaust gas recirculation channel).
Fault codes:
Misfire identified on cylinders 1/2/3/4
In order to exclude a defect with the EGR valve (exhaust gas recirculation valve) and also to exclude any other causes of the fault, a check should first of all be run on the periphery of the EGR system.
If no errors are found here, proceed as follows:
Finally a test drive should be carried out and the error memory read once again.
Important safety notice
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