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Latest Porsche Cayenne Running Report

by | Aug 19, 2013 | Project Cars, Porsche Cayenne

Life as a Cayenne driver continues. Still loads of people asking what they are like to own, so time for another Porsche Cayenne running report.

I’m about 2,500 miles or so in now and fuel economy is bearable versus my Subarus: roughly 18-20 mpg over a mix of jobs and terrains. It’s about £107 to fill up on 95 RON, then you will get roughly 320-360 miles from a tank, which is just over 20 mpg at best. If you know a Cayenne tank is 90 litres then my maths includes leaving 10 litres in there as a constant.

I’ve been looking at later Cayennes: maybe 2008 GTS. Later cars have slightly different trim and are said to be more sorted (debatable) but the downside is probably £12-13k current cost to change. Really don’t want to spend that while there is no roof on the house (builders are in), and all I am really missing right now is heated seats, so will keep my 2004 for a while. Reliability is looking good, although this starter issue I have had since buying it is bugging me now, so I am going to change that part.

Ferdinand Magazine Porsche Cayenne owning 1

Keeping it means I really want to fit my fuel of choice: LPG (propane). A conversion is circa £1600 using proper gear, tank fits in the wheel well and gives quite a nice price advantage at around 52p a litre plus VAT, but it would take me 18 months at current mileage (1200 monthly) to earn the cost back. Not sure I will keep this for two years so up in the air at the minute. If I get another client further away and my miles climb past 1500 monthly, then I will start thinking about it seriously.

DIY jobs are ongoing. I took it to Rob Campbell at Racing Restorations in Pershore last weekend to work on my 924 Turbo rebuild, but of course we started messing with the Cayenne. The car is Cat D salvage: accident repaired following a tap on the front right corner, so we had a look at the panel gaps on that and adjusted the front wing and bonnet. Turned out my NSF headlamp was rattling around so that was fixed (I could write a feature on how these are fitted to the car). We also straightened the driver’s door, which was slightly twisted. Rob is great at this sort of stuff so took less than an hour.

Ferdinand Magazine Porsche Cayenne owning 2

The wing is still a bit bent where it was repaired, and I could be fussy about the paint, so I may fit a new one. I know if I get into that then I have grown attached and LPG will be next. I’ve also fitted a replacement towbar with Rob’s help and bought some winter wheels and tyres. These were CHEAP so I am chuffed. In fact, everything so far has been very affordable.

Running costs to date on Porsche Cayenne S:

  • Pollen Filter £8
  • 2 x sets wheel Centre Caps (originals nicked) £14 (ebay)
  • Wireless DVD headphones new foam £3 (ebay)
  • Used Detachable Towbar plus Ball inc carriage £60 (ebay)
  • New footbrake return damper £23 (Porsche Silverstone)
  • Set 18″ wheels for Winter £102 (ebay)
  • Set part-worn winter tyres £30 (ebay)
  • Total spent to date: £240

The wheels and tyres were excellent bargains. Tyres have enough for this winter and I will buy another set with more of a mud profile, so good for thick snow. Don’t give me any grief about buying part worns – I’ve run good part worns on my own cars for most of my driving career and never had a problem on them. New tyres for the Cayenne are £800 to £1000 a set and no way am I paying that with nine other cars in the fleet. Your own car is on part-worns right now: check and inspect them properly and err on the side of safety is my philosophy. That said, I put new tyres on the wife’s CRV, as I don’t get to check it that often.

Anyway, I can see my Big Pig is enjoying its tyres, so am already watching out for good road rubber. Brakes are cheap enough, with Mintex discs and pads costing about £120 for front axle set, £110 for the rear. This starter will cost about £100 to be reconditioned, plus the cost to pull the manifold off and back on. Apart from that, it will be due a service soon to get ready for winter. I plan to change the brake fluid, drop the coolant and make sure that rear screen washer system is all tip top. Last thing I want is a floor full of screenwash in the middle of winter.

Just re-reading what I am writing, I think we know I am eventually doing LPG on this car. Must start tracking down the history.


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  1. Les

    John, what is it like towing without air suspension / self leveling? Seriously looking at one of these to replace my dinosaur discovery tow car.

    • John

      Hi Les, it tows great – really mega. I have that 80-series Landcruiser 4.2 TD and been using that to tow for ages. This is probably better: rides well with some weight on the steel springs and we have been towing quite a lot of material lately: reclaimed brick, plasterboard, timber etc.

      I went for steel as it is much lower maintenance than air according to Delaney but owners I have spoken to since say air has been no problem for them – occasional warning lights but no big dramas. Have to say I would stick to steel as Cayennes are complicated enough IMO. DD is usually right on most stuff 😉


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