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Hot!Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming

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Tall_Paul
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Tall_Paul PCGB Member
2020/06/03 12:40:21 (permalink)

Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming

Hi guys, never posted here before however I received a Mandatory Recall letter from Porsche GB Ltd in April stating my Cayenne S Diesel needed a software upgrade to quote, "improve the engine control system in terms of nitrogen oxide emissions". I wondered if anyone else has received this and what you make of it...........? Thanks in advance. Paul

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paulne3
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/06/05 23:32:50 (permalink)
Yes - I have received the same letter. I think it is not just a poor translation but has been deliberately written to be vague. I certainly won’t be having the work done without a clearer explanation of what is going on. 
Tall_Paul
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/06/07 14:00:03 (permalink)
Yes I agree and with talk of software adjustment to reduce nitrogen emissions I'm thinking, is this basically Porsche saying they fitted my car with an emissions defeat/cheat device? Coincidentally (perhaps) a class action against VW Group in the High Court onb6th April received what the media describes as a 'landmark ruling' enabling claims against VW. Was Porsche's letter triggered by this ruling just 9 days earlier I wonder? After 5 years of silence this seems a significant coincidence. 
 
I dont want my car 'reprogrammed' either, however the letter does say this is a 'mandatory recall' which leads me to think Porsche Centres won't work on my car unless I have this work done. ??
 
 
Ziggycol
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/06/18 11:39:07 (permalink)
What age are your Cayennes? Mine is April 2017 and I've had no letter.

Col
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hdoherty
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/07/30 11:05:01 (permalink)
Hi All
I have a 2017 Cayenne 4.2 Diesel,  lately it has been bringing up a warning " Diesel Particulate Filter faulty need Servicing".
I have read the manual and its states drive the car for about 10 minutes and keep revs above 2000rpm. I have done this
and the problem seemed to have cured itself until last week the warning appeared and the car went into limp mode.
Contacted Porsche and they advised not to drive the car and contact Breakdown get car recovered to Porsche Centre.
Did this and approx a day later was contacted by Porsche Centre and was advised that the DPF was at level 3 blockage
and that they had it regenerated.  Car is on its way back to me as i write this.  They said it was down to short journeys
but i have told them i do not do short journeys and am aware of problems with DPF. ( I'm retired but served my time as 
a Motor Vehicle Technician).
I have not received a letter as of yet.
I also intend to ask Porsche what is the procedure in Regeneration of the DPF. They only had the car approx 3/4 of a day
at most.

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hdoherty
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/07/30 13:06:24 (permalink)
Hi
Just had a discussion with my Porsche Centre and they say the recall does not apply to my Cayenne 4.2 Diesel registered Jan 2017.
The recall only applies to the V6 petrol.
 
The regeneration of the DPF is carried out by the Porsche Diagnostic Machine at the Porsche Centres.
 
 
Regards Hugh
 

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Tall_Paul
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/07/31 14:39:11 (permalink)
My Cayenne S D 4.2 is 2015 (Euro 5) and is subject to this mandatory recall. I know for a fact this also applies to Euro 6 4.2 SD vehicles as the data regarding this is published on the German KBA website, just search 'porsche emissions' on the KBA site. Google will convert to English. I am advised by experts in the field that these recalls are to overcome illegally installed emissions defeat devices fitted at manufacture. 
paulne3
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/08/01 20:55:08 (permalink)
That is certainly my suspicion. I am not a lawyer but the legal situation is interesting in the sense that the vehicle no longer belongs to Porsche and if it relates to emissions (which is not safety) I don’t see how Porsche can insist that the work is done if the owner is oppose. They maybe within their rights to refuse to service the car if it isn’t done  I suppose. 
Tall_Paul
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/08/03 08:35:17 (permalink)
You're right there, Porsche have told me they will refuse to extend the warranty if I don't have it done. Also I'm told whenever it next comes in for service, the update will be carried out regardless of whether I want it or not. 
 
From a perspective of logic, a 'defeat device' wouldn't have been fitted if not necessary to improve either performance or MPG, so removing the device must negatively impact on those parameters.
 
From what I can gather the 'mandatory' part of this 'mandatory safety recall is the German KBA forcing Porsche to carry out this recall to reduce nitrogen emissions. Anyway i have taken expert advice and can give you a point of contact if you email me.  paul.1204@hotmail.co.uk 
Ziggycol
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Re: Cayenne S Diesel 4.2 V8 - Mandatory Recall ref DME Reprogramming 2020/08/03 09:42:52 (permalink)
I haven't received any letter re mine (2017 4.2 S Diesel) but it was in for it's first MOT and 111 warranty check on 17th June - I wonder if it was updated then and hence no need to issue me with the recall?

Col
Previously:
Audi S4 Avant
BMW M Coupe
Porsche 968 Sport
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