Replacing the secondary air pump

[Porker Panamera]

Evening All,

I have a 2014 Gen 2 Porsche Panamera S E-Hybrid and it needs a new secondary air pump fitting which is a job I'd been keen to complete on my own. Has anyone completed his themselves and know where it is on the S E-Hybrid model? Had a good look already and I'm unable to identify where they are located.

Any help would be greatly appreciated 🙏🏼

Thanks, in advance,

Simon

[ferrariboi]

I did this on my Cayenne, which has two secondary air pumps. On the cayenne it was 3 bolts, an electrical connection and a push on air hose. Took less than 10 mins.

[Porker Panamera]

There are a few videos on YouTube but non are for the Porsche Panamera S E-Hybrid they only cover the Cayenne and a 911. I've scoured the Internet and can't find anything? I also had a good look under the bonnet yesterday and I struggled to find anything that looks like the secondary air pump.

To get this done by Porsche you're looking at £1,500 - £2,500 depending on man hours. From the videos I've already watched on YouTube this is a easy fix like you stated.

The search goes on.

Thanks,

Simon

[Pope]

What's the problem with the pump - total failure? Any fault codes?

The pump is located in the engine brace /subframe in front of the crank pulley; air is piped from there up to the engine. Mostly accessible from underneath.

Bear in mind the HV system - various bits around there!! Not to sound melodramatic but as a Porsche HVT I have signed and accepted conditions that forbid telling you how to repair it yourself - in an Approved workshop environment; without specific knowledge and training you would not be allowed to work on the car.

[Porker Panamera]

Morning Pope,

Thanks for getting in touch and your comments. The code being produced is a failure of the secondary air pump 4.0 something. I've checked it on my OBD reader a few times and corrected but it flashes up after a short period of time as an engine warning light.

Appreciate your position so, won't push any further for advice.

Many thanks,

Simon

[Porker Panamera]

Morning All,

I have managed to gain receipt of a new secondary air pump from Porsche for my Panamera S E-Hybrid 970 mk2 2014. The reading I'm getting from my OBD is there is an issue with the secondary air pump in bank 2 so, this is the one I assume needs replacing.

Can any of you wonderful members help me locate where the secondary air pump is as I'm unable to locate it from various checks I've been performing with the bonnet open. I am assuming this will be somewhere towards the front bumper opposed to behind the engine but I'm basing this on nothing other than an assumption.

All help is greatly appreciated.

Simon

[David W.]

Interesting thought here, normally that might be a job for and independent to do cost effectively but are they trained to do work on a vehicle with HV system?

[Porker Panamera]

Morning David,

I spoke with Halfords here in Edinburgh but they have refused to do it as they don't have Porsche software to read any faults. I might reach out to an independent mobile garage as I believe the job isn't overally complex but just fancied doing it myself.

Simon

[randlemarcus]

Porker Panamera said:

Morning David,

I spoke with Halfords here in Edinburgh but they have refused to do it as they don't have Porsche software to read any faults. I might reach out to an independent mobile garage as I believe the job isn't overally complex but just fancied doing it myself.

Simon

Have you got a good Porsche Indy in Edinburgh? If so, can you ring them up and see if they have experience working on the Panamera, and if Yes, can you go and have a coffee, and pay for one of their mechanics to show you what's what?

Not knowing what the part looks like doesnt inspire huge confidence in your ability to change a part that Porsche want a couple of grand to do - that's an awfully long way from a ten minute job. I know OPC rates are ahem, painful, but they do have book times for jobs for a reason...

[Pope]

There is only one pump; it supplies pressurised air to both engine banks via hoses and valves. There are specific codes that deal with the various issues that could occur; insufficient flow is one such code.

The secondary air is required to heat the cats during warm-up: it is introduced into the exhaust ports and promotes hotter/additional combustion, post-cylinder, to get the emissions systems up to temperature (easiest comparison is a bunsen burner - the flame gets hotter the more air you add).

The air is fed into the individual exhaust ports through bores/ports in the cylinder head; via flow valves and the pipework between the pump and engine. Exhaust by-products (soot/carbon) can block the bores/ports and restrict the flow of air - in a fully functioning system the O2 sensors in the exhaust register the presence of the additional air and the results are monitored by the engine management system. If the actual measurements do not meet the required parameters then a fault is stored.

A fault stored for only one bank suggests the other bank is functioning! It is unlikely to be the pump at fault.
I suppose I am saying: Do not just replace the pump!!

Get the specific code and state it here.

Edited by Pope on Thursday 30th September 23:11

[Porker Panamera]

Morning, thanks for the above. The code my OBD is producing is P0411 and reports it is an issue with the secondary air pump in bank 2.

Many thanks,

Simon

[Porker Panamera]

randlemarcus said:

Have you got a good Porsche Indy in Edinburgh? If so, can you ring them up and see if they have experience working on the Panamera, and if Yes, can you go and have a coffee, and pay for one of their mechanics to show you what's what?

Not knowing what the part looks like doesnt inspire huge confidence in your ability to change a part that Porsche want a couple of grand to do - that's an awfully long way from a ten minute job. I know OPC rates are ahem, painful, but they do have book times for jobs for a reason...

Hi David, I do have an awareness of what the part looks like as I've watch numerous YouTube videos and have the new part all ready to be fitted. I'm assuming the secondary air pump is positioned under the engine or within the front of the bumper/wheel arch which is restricting me visual access with just the bonnet open. I've scheduled for a friend to come around tomorrow to help with this so, hoping I'll have been able to resolve this matter before the day is out.

Thanks, again for you advice and support.

Simon

[Pope]

Hi Simon;

Official DME codes from the 970 are seven digit - to allow greater depth of diagnosis; usual codes for SAI faults are P049100 or P049200. I suspect the P0411 is a generic OBD code.

For example:

P049200 Diagnostic information  
DME control unit 

P049200  Bank 2 secondary air system  malfunction

Diagnostic conditions
Diagnostics runs once during cold start

Fault setting condition(s) Leak or blockage detected in secondaryair line

Monitored component or system
Secondary air system

Fault finding notes
If the fault occurs in connection with the fault symptom (P code P049100), the fault in question is a fault in the overall system:

Blockage between secondaryair pump and junction at which the secondary air system separates into the two banks.
Leak between secondary air pump and a secondary air valve.
Inadequate secondary air pump delivery quantity.

If the fault occurs by itself:
Blockage on bank 2
Leak behind the valve

Generally:
Check the secondaryair hoses

Check that the secondaryair valves are activated (drive link)

Visual inspection of the air admission into the cylinder head (contamination)

See cleaning instructions in the PIWIS information system 
(Workshop Manual 266029)

Check secondaryair system, bank 1 short test Check secondaryair system, bank 2 short test

The short tests can only be carried out once per driving cycle.


Functional restrictions
No secondary air supply in catalytic converter hot start 
Catalytic converter heats too slowly

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