Macan Diesel EGT Valve

[Paul]

Another “good read” - gives the VW official line and some proper explanations.


viewtopic.php?f=26&t=7682&p=160665&hilit=VW+dpf#p160665

[GMAN75]

After having car for three weeks which included a couple of 200 mile trips, i got Replace particular filter warning. After searching this sight i took the car for a blast up the motorway, this cleared the warning but over the next six weeks i got the message another two times and repeated my motorway blast. This week the car did it again but this time went into limp mode with the engine warning light and swirly coil light on. A dpf cleaner in Wakefield said the filter would need removing and deep cleaning as regenerating was not working. He also mentioned that the EGT valve may be faulty..Tim Leeds

I would second taking the car into a Porsche dealer. If, however, the DPF needs replacing, I hope you have a warranty left on that beast because that'll be a 4 figure job!

[Guy]

Suggest that you call Porsche customer services at Reading HQ to find out the history of the car and see what software version of the DME is recorded. There is a recent software upgrade which might need installing. The latest version is AJ07.

Further to Mark's suggestion, if your car has indeed had either of the DME-related software modifications then they should be listed in your 'Porsche Guarantee & Maintenance' booklet at page 24 under 'Service Campaigns'. The earlier update was WG22.

I did have WG22 applied to my SD back in September 2017 but have not had the later AJ07 update. To date I have never experienced DPF problems. I have always used 'premium' diesel (Shell V-power or equivalent),

[monkeyrs6]

Suggest that you call Porsche customer services at Reading HQ to find out the history of the car and see what software version of the DME is recorded. There is a recent software upgrade which might need installing. The latest version is AJ07.

Will Porsche HQ willing give me the history of the Vehicle and will they know What software its running ?. I have checked on the Porsche websight using the vin number and it shows no outstanding re-calls. I bought the car second hand as the third owner, I have just worked out from the last service to MOT that the second owner only had the car for six months and only did 1500 miles. As this dealer was JCT 600 BMW maybe they were not aware of the DPF problem THOUGH the salesman knew this was the fourth car in the familey. The garage is sending me to Porsche Leeds which is part of the same JCT600 Group for a forced Re-generation. I gather from the reply,s that the re-generation light needs to be on to make the motorway blasts effective. Do you always get the light on when the car is re-generating.. Tim

[mark-yorkshire]

Recalls are not the same as campaigns. In the case of the DME software upgrade campaign that seems to be only offered when a customers complains. Porsche Leeds will be able to check which DME software is installed on your car.

[On-Track]

Suggest that you call Porsche customer services at Reading HQ to find out the history of the car and see what software version of the DME is recorded. There is a recent software upgrade which might need installing. The latest version is AJ07.

Will Porsche HQ willing give me the history of the Vehicle and will they know What software its running ?. I have checked on the Porsche websight using the vin number and it shows no outstanding re-calls. I bought the car second hand as the third owner, I have just worked out from the last service to MOT that the second owner only had the car for six months and only did 1500 miles. As this dealer was JCT 600 BMW maybe they were not aware of the DPF problem THOUGH the salesman knew this was the fourth car in the familey. The garage is sending me to Porsche Leeds which is part of the same JCT600 Group for a forced Re-generation. I gather from the reply,s that the re-generation light needs to be on to make the motorway blasts effective. Do you always get the light on when the car is re-generating.. Tim

From your posted reply above, you didn't buy the car from an Official Porsche Centre but presumably the BMW dealer still sold the car with a warranty. Porsche Leeds should be able to tell you if a regeneration will be a permanent fix or if a replacement DPF is needed. In any event it's an engine defect and the costs should be met by the warranty.

I hope you get it sorted because the SD is a really great car.

[monkeyrs6]

From your posted reply above, you didn't buy the car from an Official Porsche Centre but presumably the BMW dealer still sold the car with a warranty. Porsche Leeds should be able to tell you if a regeneration will be a permanent fix or if a replacement DPF is needed. In any event it's an engine defect and the costs should be met by the warranty.

I hope you get it sorted because the SD is a really great car.
[/quote]

Hi Peter you are right the Macan Diesel is a good looking car with a wonderful interior and what could be a great engine with low down torque and enough get up and go to keep most happy. The problem is the crappy engine management and the poor management of the Diesel Particular Filter.. What is needed is some form of interface which allows the user to perform manual regeneration when they are driving in a suitable manner. Can anybody tell me how much Porsche are charging to Manually Regenerate our cars ??. Can this only be done by Porsche.. I found out my car got the WG22 software in Jan 2017 and apparently is now eligible for the New Aj07 Update. I am unsure about this new software as apparently it is designed to further reduce nitrogen oxide. Will this help the DPF regenerate or possibly make it worse.. One thing i can say is i have learned a lot about Diesel fuel and DPF filters after spending far to many OCD hours on the Net.. A lot of people say we should be putting Premium Diesel in our cars.. According to those in the know the only difference between standard and premium diesel is the additives . Supermarkets and branded fuel comes from exactly the same place and even the same tanks. As the fuel leaves the depot additives are then put in to turn it into V-MAX or Ultima type fuels. In 2009 Uk A2 class diesel was standardized to meet EN590 which is now virtually Sulfur free. Experts say forget the premium diesel, use the standard stuff and put an additive in yourself (such as Archoil AR6900-D) It would also seem prudent to every few thousand miles throw into your tank a bottle of DPF cleaner especially before you take it on a regeneration cycle up the motorway.. Will it help ? i intend to give it a go..Tim

[Guy]

What is needed is some form of interface which allows the user to perform manual regeneration when they are driving in a suitable manner.

This tool states that it is able to 'request the regeneration process': https://www.ebay.co.uk/itm/OBD-2-iCarso ... 1438.l2649

However, if purchasing I would contact the supplier to ask specifically whether it can perform the regeneration function for the DPF on a Porsche Macan SD - that way you can return for a refund if it doesn't. As an example, someone on the US Forum stated that despite advertising 'new battery registration', he asked the supplier and the tool is unable to perform this.

Better still, if (understandably) not happy to pay Porsche OPC prices, why not find a Porsche independent/specialist who has diagnostic tools such as that linked above, and more importantly the experience and knowhow to resolve the problem, whether by DPF regeneration or replacement.

[mark-yorkshire]

From your posted reply above, you didn't buy the car from an Official Porsche Centre but presumably the BMW dealer still sold the car with a warranty. Porsche Leeds should be able to tell you if a regeneration will be a permanent fix or if a replacement DPF is needed. In any event it's an engine defect and the costs should be met by the warranty.

I hope you get it sorted because the SD is a really great car.

Hi Peter you are right the Macan Diesel is a good looking car with a wonderful interior and what could be a great engine with low down torque and enough get up and go to keep most happy. The problem is the crappy engine management and the poor management of the Diesel Particular Filter.. What is needed is some form of interface which allows the user to perform manual regeneration when they are driving in a suitable manner. Can anybody tell me how much Porsche are charging to Manually Regenerate our cars ??. Can this only be done by Porsche.. I found out my car got the WG22 software in Jan 2017 and apparently is now eligible for the New Aj07 Update. I am unsure about this new software as apparently it is designed to further reduce nitrogen oxide. Will this help the DPF regenerate or possibly make it worse.. One thing i can say is i have learned a lot about Diesel fuel and DPF filters after spending far to many OCD hours on the Net.. A lot of people say we should be putting Premium Diesel in our cars.. According to those in the know the only difference between standard and premium diesel is the additives . Supermarkets and branded fuel comes from exactly the same place and even the same tanks. As the fuel leaves the depot additives are then put in to turn it into V-MAX or Ultima type fuels. In 2009 Uk A2 class diesel was standardized to meet EN590 which is now virtually Sulfur free. Experts say forget the premium diesel, use the standard stuff and put an additive in yourself (such as Archoil AR6900-D) It would also seem prudent to every few thousand miles throw into your tank a bottle of DPF cleaner especially before you take it on a regeneration cycle up the motorway.. Will it help ? i intend to give it a go..Tim
[/quote]

My car is booked in for the AJ07 update and have been told by Porsche Leeds that other customers who have had the software upgrade have been satisfied that there previous dpf issues have been resolved - we will see. All I know for certain is that I never had an issue with my first SD that I owned between May 20124 and May 2015 or my second SD between May 2015 and May 2017. When my second Macan had its first service in May 2017 the WG22 “upgrade” was performed and thereafter I had to regenerate the dpf fairly regularly. Hopefully AJ07 will be an improvement. In reality what Porsche need to do is to have a readout in the multifunction display of the dpf % and allow drivers the option to force a regen at times that are suitable eg on motorways.

[rydercowan]

Under the Consumer Rights Act 2015 if a fault comes to light before you have had the vehicle 6 months you are entitled to a repair, replacement or refund. Under this law it is assumed that the fault was present at the time of purchase unless the seller can prove otherwise. Unless you agree otherwise, the selling dealer has only one opportunity to repair (or replace) the faulty vehicle after which, if they fail to repair it, you’re entitled to a refund. In the event of such a refund the dealer may make a reasonable adjustment to the amount refunded to take account of the use that you have had of the vehicle.