2016 Cayenne S diesel software recall - emissions
Discussion
Anyone had this done yet? Mine was done just prior to the last lockdown. I was assured by my OPC that power/torque would not be affected and the software change was purely on the "sport" mode. Supposedly the mode would revert to comfort if the software sensed that the car was not being used "sportily" - whatever that means.
Anyway, because of lockdown I haven't driven the car until the past week. I find that it will no longer take 8th gear in comfort mode when driven legally. Even cruising at 70 it sits in 7th. If I upchange by the paddle it drops back to 7th as soon as D takes over from M on the display. Pushing it further, I find it upchanges to 8th at 75, IE illegal speeds. Before the upgrade it happily sat in 8th at 50+.
Its back at OPC next week. Anyone else finding this problem?
Paul
Anyway, because of lockdown I haven't driven the car until the past week. I find that it will no longer take 8th gear in comfort mode when driven legally. Even cruising at 70 it sits in 7th. If I upchange by the paddle it drops back to 7th as soon as D takes over from M on the display. Pushing it further, I find it upchanges to 8th at 75, IE illegal speeds. Before the upgrade it happily sat in 8th at 50+.
Its back at OPC next week. Anyone else finding this problem?
Paul
Thanks Bigblock
When I discussed it with OPC before allowing them to do the upgrade, they did warn me that it affected the sport mode, in exactly the way you describe. I haven't tried mine yet in sport but expect the same results. Only used Sport once, at a Porsche handling day at Abingdon airfield, where I beat the Macan Turbos for FTD! They were well p*ssed off. For sport fun I use my Boxster S, the Cayenne is my daily and caravan tower.
In comfort, it takes 8th at 75 but won't hold it before that, even in manual. Back at OPC next Monday so will report back on here.
When I discussed it with OPC before allowing them to do the upgrade, they did warn me that it affected the sport mode, in exactly the way you describe. I haven't tried mine yet in sport but expect the same results. Only used Sport once, at a Porsche handling day at Abingdon airfield, where I beat the Macan Turbos for FTD! They were well p*ssed off. For sport fun I use my Boxster S, the Cayenne is my daily and caravan tower.
In comfort, it takes 8th at 75 but won't hold it before that, even in manual. Back at OPC next Monday so will report back on here.
David W. said:
Mine was done at last service a month or so ago. I’ve been driving it a reasonable amount and haven’t detected any difference, it’s still a mega car. Will keep an eye on its behaviour in 8th when next out.
DavidAny chance you could let me know before next Monday please? Particularly watch for 8th not dropping in until touching 75mph, and not holding if you shift manually in the 50's and 60's.
Thanks
David W. said:
My observations this morning. Vehicle fully up to temp, level roads, constant accelerator inputs, car does not have sports+.
It drops into 8th sooner 70-71 in sport than comfort 75-77! The reverse of what you would expect.
In manual in both sport and comfort it will change up to 8th at 62 and hang onto 8th down to 60-61, no change up to 8th in the 50s possible.
Other observations I have a change up indicator, hadn’t realised this but instruction book mentions it so it was always there.
Other observation, what bl**dy good cars these are, the only thing that might replace it is new v8 Cayenne GTS (but not coupe) as tested by YouTube Remove Before Race this week, but without alcantara accents and houndstooth seats as the white would get grubby in a work vehicle.
Hope this helps.
Thanks David. My car at OPC now so will report back when I know more.It drops into 8th sooner 70-71 in sport than comfort 75-77! The reverse of what you would expect.
In manual in both sport and comfort it will change up to 8th at 62 and hang onto 8th down to 60-61, no change up to 8th in the 50s possible.
Other observations I have a change up indicator, hadn’t realised this but instruction book mentions it so it was always there.
Other observation, what bl**dy good cars these are, the only thing that might replace it is new v8 Cayenne GTS (but not coupe) as tested by YouTube Remove Before Race this week, but without alcantara accents and houndstooth seats as the white would get grubby in a work vehicle.
Hope this helps.
Edited by David W. on Saturday 12th December 17:55
So report on yesterdays visit to OPC. I need to be fair to them and tell the whole story.
They asked me about driving habits over past few months, which have mainly been short runs locally since March due to lockdown, probably 5 miles ma each journey. Occasional short run on local DC NSL but only a couple of miles. Never really reaching optimum fluid temps or operating revs.
They promised to extract data, and take a test drive. Lent me a new Macan for the day (nowhere near as good as the Cayenne).
When I returned to collect, they told me the data showed an excess of sooting in the system, which indicates that I had not been doing sufficient distances and speeds to start the sooting regeneration operation. To operate the regen system efficiently the car needs "regular" runs at operating temperatures and between 1500 and 3000rpm. I had to admit that I hadn't been doing that, probably since last March. The sooting causes the engine to run at higher revs than normal to try to get the regen working - which would explain holding 8th until 75mph. I do know about regen in diesels, but hadn't occured to me that this could be the problem.
They had taken it for a suitable run, and eventually it started dropping into 8th at 67mph. Problem solved. They also explained that there is no way it can take 8th below 60 - the revs are just not high enough. Left on good terms.
Used the M4 on the way home, and exactly as they said, now taking 8th at 66/67 under cruising conditions and gentle accelaration. Will hold on to 7th for longer if being "enthusiastic" with the right pedal.
Paul
They asked me about driving habits over past few months, which have mainly been short runs locally since March due to lockdown, probably 5 miles ma each journey. Occasional short run on local DC NSL but only a couple of miles. Never really reaching optimum fluid temps or operating revs.
They promised to extract data, and take a test drive. Lent me a new Macan for the day (nowhere near as good as the Cayenne).
When I returned to collect, they told me the data showed an excess of sooting in the system, which indicates that I had not been doing sufficient distances and speeds to start the sooting regeneration operation. To operate the regen system efficiently the car needs "regular" runs at operating temperatures and between 1500 and 3000rpm. I had to admit that I hadn't been doing that, probably since last March. The sooting causes the engine to run at higher revs than normal to try to get the regen working - which would explain holding 8th until 75mph. I do know about regen in diesels, but hadn't occured to me that this could be the problem.
They had taken it for a suitable run, and eventually it started dropping into 8th at 67mph. Problem solved. They also explained that there is no way it can take 8th below 60 - the revs are just not high enough. Left on good terms.
Used the M4 on the way home, and exactly as they said, now taking 8th at 66/67 under cruising conditions and gentle accelaration. Will hold on to 7th for longer if being "enthusiastic" with the right pedal.
Paul
David W. said:
An interesting and satisfactory result Nutsy.
I did have a particulate filter (I think it was) warning come up a while ago which resulted in me giving the car an Italian tuneup and haven’t seem it again. I have to do similar with my wife’s Freelander which includes heavy braking as they suffer from under use too!
DavidI did have a particulate filter (I think it was) warning come up a while ago which resulted in me giving the car an Italian tuneup and haven’t seem it again. I have to do similar with my wife’s Freelander which includes heavy braking as they suffer from under use too!
Like the "Italian Tune Up". Must try that more often
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