The EGR valve in my Golf Plus is faulty - should I have the emissions fix anyway?

My Volkswagen dealer has advised against carrying out the emissions software update on my Golf Plus because they say there is a fault in the exhaust gas recirculation valve. The car drives fine and no warning lights come on. A new EGR valve costs over £1000 so I'm reluctant. Should I insist they go ahead with the update or could there be a risk of damage or malfunction?

Asked on 15 May 2017 by David Kennard

Answered by Honest John
The update relies on properly functioning injectors, an efficient EGR and a properly functioning DPF. So unless you are prepared to replace the EGR (which you will have to do sooner or later anyway) don't have the fix.
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