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Injector replacement and breakdown!

michael.james

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I’ve had my 2020 Carrera 4S for around four months now. About a month after delivery, I got a warning on the dash saying: “Reduced engine power – driving permitted – visit workshop.”

I took it to my local OPC. While it was there they discovered an oil leak from the sump, which was unrelated to the warning but became a bit of a saga in itself. As the engine warning didn’t return, that issue wasn’t investigated any further at the time.

I was then back at the dealer to have an Aerokit fitted, which all went smoothly. A couple of weeks later, however, the reduced engine power warning came back. I returned to the OPC and, following diagnostics, they told me it needed an injector replacing. The earliest they could book it in with a courtesy car was around six weeks later, as they wanted the car for a few days.

The appointment eventually came around and I dropped the car off. By the end of that week, however, the parts still hadn’t arrived, which I found a little strange considering the booking had been made several weeks in advance.

I was going abroad for a week, so I returned the courtesy car and agreed to collect my 911 when I got back, once the work had been completed. I picked the car up yesterday. I drove around 30 miles down the A19, spent a couple of hours visiting a business, then set off home. When I got back into the car there was a noticeable smell of petrol, but as I was in a public car park I couldn’t be certain it was coming from my car.

A few miles into the journey home, the reduced engine power warning appeared again. This time there was a significant loss of power, although the car did manage to get me home. I called the OPC while I was driving back. They had no courtesy cars available and suggested I contact Porsche Assistance.

Once I parked the car, I noticed fuel leaking from underneath it. Porsche Assistance contacted the fire brigade, who attended to make sure there was no immediate risk of ignition. I then had around a three-hour wait for the recovery truck. When the car was started again to get it onto the truck, fuel was effectively spurting out underneath and the engine sounded extremely rough.

Porsche Assistance said they had no vehicles available themselves, so Enterprise contacted me instead. Their solution was for me to somehow make my own way to Newcastle Airport, around 30 minutes away, to collect a rental car. I told them that simply wasn’t a realistic solution. One of the reasons I took the Porsche Extended Warranty was the reassurance of having Porsche Assistance and, as I understood it, being kept mobile in an appropriate replacement brand vehicle if something like this happened.

The car is now in storage and is being transported back to the OPC today, where they will obviously need to investigate what has happened and repair it.

At this point I’m trying to decide how firmly I should handle this with Porsche and the OPC. I’ve now had the same engine warning on three separate occasions, the car has recently been returned to me following an injector repair, and within around 30 miles it developed a major fuel leak serious enough for the fire brigade to attend.

I’m also currently without a replacement vehicle, despite having Porsche Assistance, and I’ve now got fuel all over the road outside my property, which understandably hasn’t gone down particularly well with the neighbours.

I’m not expecting special treatment, but equally I don’t think being offered a basic Enterprise rental, or being expected to find my own way to Newcastle Airport to collect one, is really in keeping with the level of breakdown support I believed I was paying for with the Porsche warranty.

I’d be interested to hear how others would handle this and what they would reasonably expect Porsche or the OPC to do from here.
 
If this were my car, I would be treating this as a serious quality and customer-service failure, but I’d separate the issues into two buckets:

1/ The mechanical failure itself.​
2/ How Porsche and the OPC handled the situation.​

On the mechanical side, the most important fact is that the car appears to have been returned to you after injector-related work and then developed a significant fuel leak within roughly 30 miles. Fuel leaking heavily enough to require fire brigade attendance and then visibly spraying out when the engine was restarted is not a minor defect. If the injector replacement involved disturbing fuel system components, it’s entirely reasonable to expect Porsche to investigate whether the leak is connected to the work that was just carried out.

The timing is difficult for them to dismiss. You had:​
Repeated “Reduced engine power” warnings.​
Diagnosis pointing to an injector.​
Injector work completed.​
Immediate recurrence of the warning.​
Major fuel leak shortly afterwards.​

Whether the leak was caused by the repair or by another component failure is something their technical investigation will determine, but I would expect a very thorough explanation rather than a simple “it’s fixed now” when the car is eventually returned.

On the customer-service side, I think you have a stronger complaint than you perhaps realise. The parts not being available after a six-week wait is frustrating but not necessarily anyone’s fault. Parts availability can be unpredictable.

However:
Returning a car after fuel-system work that then suffers a major fuel leak almost immediately is a serious event.​
Being left without meaningful mobility after a warranty-backed breakdown is poor.​
Expecting a customer to arrange transport to an airport 30 minutes away to collect a hire car is not what most Porsche owners would regard as a premium breakdown experience.​

I wouldn’t be demanding compensation immediately. I’d first let the OPC investigate and give them the opportunity to make things right. But I would be documenting everything carefully:
Dates of each warning occurrence.​
Workshop visits.​
The injector diagnosis.​
Date of repair.​
Mileage from collection to breakdown.​
Porsche Assistance interactions.​
Fire brigade attendance.​
Recovery details.​
Photographs/videos of the fuel leak if you have them.​

Once the OPC has established the cause, I would ask for a meeting or call with the Service Manager and calmly request:
A full written explanation of the failure.​
Confirmation of exactly what was repaired.​
Confirmation of whether the fuel leak was connected to the injector work.​
An explanation as to why the reduced engine power fault has now occurred three times.​
Assurance that the issue has been fully resolved and road tested.​
Depending on their response, I would then consider escalating to Porsche Cars GB customer services.​

In terms of what I would reasonably expect from Porsche:
Collection, repair and return at no cost.​
A detailed technical explanation.​
Priority handling given the safety implications.​
Some goodwill gesture if the investigation shows the leak resulted from recent workshop work or if the handling of the breakdown fell below Porsche’s stated assistance standards.​

What I would not do at this stage is start talking about rejection of the vehicle or legal remedies. A six-year-old 992 having a fault is one thing; a dealer potentially returning a car with a fuel-system issue is another. Let them investigate first, but make it clear that because of the safety aspect and the repeated nature of the fault, you expect a very high standard of communication and transparency.

From an outsider’s perspective, the key issue isn’t actually the warning light anymore. It’s that the car appears to have left the workshop and almost immediately suffered a potentially dangerous fuel leak. That’s the point I’d be focusing on in every conversation with the OPC and Porsche GB.

I hope this helps.... David Wood - 992 Register Secretary
 
David has made some good points.
These things can become complicated and confusing - but you have 2 separate tasks
The first is to sort out the mechanicals with the PC service manager/dealer principal. The second is to take up the poor quality of service with Porsche Assistance direct. Unfortunately, you are not the first customer to have suffered the latter since AA took over the facility. Be firm but fair to win the day! 🤞🏼
Good luck.

Regards,

Clive
 
Thanks David, Clive and Jeff, all very thorough and valid points.

Yes, there are two parts to it - the first being the mechanicla failure in itself which is very worrying, the second being how the centre are going to deal with it.

I rang assistance / mobility again yesterday morning - the mobility dept does not ooen until 9:30 and explained I was still without a vehicle and they located one at my local OPC, which is where mine is being recovered to.

I chatted to the servcie advisor and expaliend even though I was calm on the surface, I was very dissapointed and did not want the vehcile bakc until I know its fully fixed and also an explanation of what went wrong, as it could have actually caught fire. Thankfully I took videos of the fuel leak showing the severity.

Any advice of how to proceed with engaging with the centre principal and Porsche UK would be appreciated. I understand the centre princial is on holiday atm.

I'm not one for looking for any type of compensation when things go wrong, however I do feel this is very different. This is a premium product for which I paid £90k for four months ago and I do not feel like a valued customer right now from both the OPC, and assistance side. I've had to do all the chasing.

This is on top of the replacement sump issue I had two months ago, which is a seperate story. I had a low oil warning light come on and although it was topped up it appeared there was damage to the sump. Dealer claimed I had damaged the sump, of which I had no recollection at all of doing so. My concern was that it was not picked up on the pre delivery check, even though I aksed for a copy of it. Ultimately I had no option but to accept their version and it cost me £1500 at a reduced rate to repair. This was done at the sister OPC (same franchise) where I bought the vehicle from.

I've since spent £7k on an aero kit and side skirts at the OPC which took my mind off the sump issue, but I'm kind of falling out of love with the car now.
 
Your experience sounds dreadful. Over the years I have seen this sort of thing from both sides and have learnt a few lessons which seem to enhance the relationship, again from both sides.
1) Always complain to the Dealer Principal in writing, but in a friendly and constructive style aimed at helping him/her understand your perspective and improving their business operation. If the DP is on holiday it should be picked up by a stand-in or by the DP on return. You will be able to get the DP’s email address from reception, or another contact. Offer to meet in person or share a scheduled phone call after they have had time to investigate, but document the content and resolution agreed in the call back to them in another email after the call. On reading a recent complaint, my OPC DP apologised in person and indicated that he was horrified and had taken steps to improve various group-wide processes that I had suggested. He actually said based on my experience he was surprised I was still dealing with them.
2) I suggest you do ask for compensation. I tell them that there is a cost of delivering poor quality which should be borne by them, not me. The approach I take (learnt from when I was a supplier) is to suggest something which has a higher value to you than it costs them. As an example, on a previous complaint dealt with by the General Sales Manager I was offered 50% off my 2-year service. That was nearly 2 years away but kept me as a service customer and I thought was an acceptable resolution of that particular issue.
If you document your issues and compensation request to your DP I would be amazed if you don’t get a satisfactory resolution. But if that’s the case, my next stop would be the top guy in Porsche Cars GB.
 
I would document everything in writing to the dealer principal and copy Porsche GB, setting out the facts "this was my experience, what are you going to do about it". Assuming they fix the car and you want to keep it, I would then take it to an independent Porsche specialist you know and trust to check it has indeed been fixed correctly.
 
I'd not heard anything from the OPC since I collected the courtesy vehicle on Friday morning, so at 2pm today I rang Porsche GB and opened a case with them.

He was horrified at the thought of me driving around with a fuel leak. I expressed my preference to deal with the dealer principal. I have no issue with the service advisors and have had a good relationship with them, however, feel this needs dealing with by the head of business. I got an email reciept with the case reference.

As of this evening I still have not heard back from the centre. I'd have thought at the least the service manager would call with an update. Nothing. Dissapointing. Frustrating.
 

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