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Discussion Starter #1
I was recently looking through the Mercedes website and found a check function to see if my car was due any software updates . Too my surprise it came up as update required and they will write to owners to advise when the update is available . Having been stung by the VW update back in 2017 I don’t want to make the same mistake . Has anyone heard what the actual update entails , I suspect emissions related ?
I have the A200 Diesel OM651 engine . It does state it’s a voluntary update .
 

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Discussion Starter #2
I have done a search on this topic and it looks like it’s a similar update as the VW one in 2017 which messed up a lot of cars . The MBclub forum topic I found recommends not having it done as it is voluntary. I was involved in the VW update and know the effects well so I will be making sure the update is not installed on my next dealer service visit . If anyone has had the update carried out it would be interesting to hear your thoughts .
 

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I have just checked again on the Mercedes website and it no longer states that my vehicle requires an engine software update which I am pleased about having been effected by the VW update disaster in 2017 . It would be interesting to know why but guess will never know .
 

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Discussion Starter #5
I have just checked again on the Mercedes website and it no longer states that my vehicle requires an engine software update which I am pleased about having been effected by the VW update disaster in 2017 . It would be interesting to know why but guess will never know .
Well this is really strange , I just checked again today and it now states that my car does have an outstanding voluntary emissions update requirement . Their is a section to look at what the update is about . It’s the same as the VW update in 2017 to reduce NOX .
I will certainly not be having this done as It’s similar to VW by the look of it which messed up thousands of cars .
 

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Discussion Starter #6
Just booked in for service and the advisor said the Emissions software update is required on my car . I have told them not to do it . It is voluntary .
She said no problems have been recorded by those who have had it applied but I’m not taking the chance . Anyone else refused it ?
 

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Discussion Starter #7
Service completed yesterday . Stressed the importance of my wish not to apply the emissions update which was acknowledged without any problem . Didn’t really seem to surprised at my wish . I had the feeling he was thinking , I don’t blame you .
 
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