AdBlue & Engine Control Faults

Technical Forum for the Porsche Macan
User avatar
Guy
Posts: 1852
Joined: Tue Nov 04, 2014 11:06 am
Location: Buckinghamshire

Re: AdBlue & Engine Control Faults

Post by Guy » Mon Jan 27, 2020 12:54 pm

On-Track wrote:
Mon Jan 27, 2020 12:52 pm
Sorry I didn't post the end of my story. Like Guy's experience, it turned out to be a faulty AdBlue pump. I didn't shout about it at the time but I got a massive discount from the OPC because they'd misdiagnosed the fault as an AdBlue sensor.

Given that the parts are seriously expensive (sensor = £400, pump = £800), correct diagnosis is essential. I don't know if the system on the Cayenne is the same as that on the Macan but I would get the OPC to check the pump.
Thanks for the update. At those prices I am now glad that I had the two-year warranty extension - I only took it out in case the transfer box went again!

User avatar
Ti Rich
Posts: 60
Joined: Mon Feb 24, 2020 8:35 pm

Re: AdBlue & Engine Control Faults

Post by Ti Rich » Mon May 18, 2020 6:16 pm

So 8 weeks into ownership and I got the "Engine Control Fault" yesterday. The car went into limp mode so I pulled over when safe to do so and restarted the engine. The fault cleared straight away.

Should I contact OPC or just leave it and see if it happens again?
2017 Macan S D, 21" Classics, PASAM, Black Exhausts, Heated seats / Steering Wheel, Nav, Park Assist.

mark-yorkshire
Posts: 2776
Joined: Thu Jan 23, 2014 8:34 pm

Re: AdBlue & Engine Control Faults

Post by mark-yorkshire » Mon May 18, 2020 6:49 pm

Ti Rich wrote:
Mon May 18, 2020 6:16 pm
So 8 weeks into ownership and I got the "Engine Control Fault" yesterday. The car went into limp mode so I pulled over when safe to do so and restarted the engine. The fault cleared straight away.

Should I contact OPC or just leave it and see if it happens again?
I once had the same in my 2015 SD. It didn’t come back. However I did get the limp mode on my current car in late 2018 when it had to be flat bedded to Porsche Leeds foe the dpf to be cleared.
2018. Macan SD Volcano Grey
2005. 987.1 Boxster S. Black.

2015 . Macan SD . Agate grey. Sold at 23,000 miles.
2014. Macan SD . Jet black. Sold at 8,000 miles.
2012. 981 Boxster PDK . Agate grey. Sold
2010. 987.2 Cayman PDK. Aqua blue. Sold.

User avatar
Ti Rich
Posts: 60
Joined: Mon Feb 24, 2020 8:35 pm

Re: AdBlue & Engine Control Faults

Post by Ti Rich » Thu May 21, 2020 11:14 am

mark-yorkshire wrote:
Mon May 18, 2020 6:49 pm
Ti Rich wrote:
Mon May 18, 2020 6:16 pm
So 8 weeks into ownership and I got the "Engine Control Fault" yesterday. The car went into limp mode so I pulled over when safe to do so and restarted the engine. The fault cleared straight away.

Should I contact OPC or just leave it and see if it happens again?
I once had the same in my 2015 SD. It didn’t come back. However I did get the limp mode on my current car in late 2018 when it had to be flat bedded to Porsche Leeds foe the dpf to be cleared.
Low Adblue warning the next day - 650 miles to go. Now that warning has disappeared too. So I have no idea if the AdBlue level is low or not. It's not come back on and i have done another 140 miles?

Take to OPC?
2017 Macan S D, 21" Classics, PASAM, Black Exhausts, Heated seats / Steering Wheel, Nav, Park Assist.

User avatar
Guy
Posts: 1852
Joined: Tue Nov 04, 2014 11:06 am
Location: Buckinghamshire

Re: AdBlue & Engine Control Faults

Post by Guy » Thu May 21, 2020 11:44 am

Ti Rich wrote:
Thu May 21, 2020 11:14 am
Take to OPC?
I would. Maybe an AdBlue sensor or pump fault (I had the latter, but the OPC originally suspected the pump).

On-Track
Posts: 633
Joined: Sun May 03, 2015 12:59 pm
Location: Staffordshire

Re: AdBlue & Engine Control Faults

Post by On-Track » Fri May 22, 2020 6:15 pm

Ti Rich wrote:
Thu May 21, 2020 11:14 am
mark-yorkshire wrote:
Mon May 18, 2020 6:49 pm
Ti Rich wrote:
Mon May 18, 2020 6:16 pm
So 8 weeks into ownership and I got the "Engine Control Fault" yesterday. The car went into limp mode so I pulled over when safe to do so and restarted the engine. The fault cleared straight away.

Should I contact OPC or just leave it and see if it happens again?
I once had the same in my 2015 SD. It didn’t come back. However I did get the limp mode on my current car in late 2018 when it had to be flat bedded to Porsche Leeds foe the dpf to be cleared.
Low Adblue warning the next day - 650 miles to go. Now that warning has disappeared too. So I have no idea if the AdBlue level is low or not. It's not come back on and i have done another 140 miles?

Take to OPC?
Are you sure that the warning was "Low AdBlue"? The Low AdBlue warning starts with 1500 miles to go before no engine restart. The AdBlue fault that I had starts with 650 miles to go. The fact that the fault disappeared leans more towards fault than low AdBlue. The only difference between my experience and the symptoms you describe is in my case the car did not go into limp home mode.

Take the car to the OPC you bought it from as soon as they reopen. As you'll see from my earlier posts in this thread, parts and labour are expensive.
Peter

On Order: GTS http://www.porsche-code.com/PLZQLD11
Going- 2015 Sapphire Blue Diesel S
Gone -2013 Cayenne Diesel

User avatar
Ti Rich
Posts: 60
Joined: Mon Feb 24, 2020 8:35 pm

Re: AdBlue & Engine Control Faults

Post by Ti Rich » Sat May 23, 2020 11:29 am

I tried ringing the OPC yesterday. They are open but phone just never gets answered.

The second warning was definately low Adblue. I now have 20L in stock!!!
2017 Macan S D, 21" Classics, PASAM, Black Exhausts, Heated seats / Steering Wheel, Nav, Park Assist.

User avatar
Paul
Posts: 8380
Joined: Fri Sep 05, 2014 6:19 pm
Location: Bristol
Contact:

Re: AdBlue & Engine Control Faults

Post by Paul » Sat May 23, 2020 3:01 pm

Ti Rich wrote:
Sat May 23, 2020 11:29 am
I tried ringing the OPC yesterday. They are open but phone just never gets answered.

The second warning was definately low Adblue. I now have 20L in stock!!!

DIY job if you’ve bought some...

1st Sapphire Blue SD
viewtopic.php?f=23&t=1986

Current Sapphire GTS
viewtopic.php?f=23&t=4296

User avatar
Ti Rich
Posts: 60
Joined: Mon Feb 24, 2020 8:35 pm

Re: AdBlue & Engine Control Faults

Post by Ti Rich » Sat May 23, 2020 3:32 pm

Paul wrote:
Sat May 23, 2020 3:01 pm
Ti Rich wrote:
Sat May 23, 2020 11:29 am
I tried ringing the OPC yesterday. They are open but phone just never gets answered.

The second warning was definately low Adblue. I now have 20L in stock!!!

DIY job if you’ve bought some...

Thanks for that. I have no problem refilling the Adblue, if it needs it. It's the engine fault and maybe false Adblue warning that concerns me.
2017 Macan S D, 21" Classics, PASAM, Black Exhausts, Heated seats / Steering Wheel, Nav, Park Assist.

On-Track
Posts: 633
Joined: Sun May 03, 2015 12:59 pm
Location: Staffordshire

Re: AdBlue & Engine Control Faults

Post by On-Track » Sat May 23, 2020 5:06 pm

If your car is low on Adblue it will take most if not all of the 20L. Mind you that would mean that the car had not been topped up before it was sold to you.
Peter

On Order: GTS http://www.porsche-code.com/PLZQLD11
Going- 2015 Sapphire Blue Diesel S
Gone -2013 Cayenne Diesel

Post Reply