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Joined: 14 Apr 2013
Posts: 3797
Location: North East England

PostPosted: Sat Feb 10, 2018 1:57 pm    Post subject: Reply with quote

New997buyer wrote:
OP, in answer to the “How common?” question the answer is not very. But running a 911 ain’t cheap. Expect bills. The obvious stuff will be rads, condensers, coffin arms, brakes and other general maintenance. Sure you may be unlucky and need a cylinder lining rebuild. But imho that’s the water cooled equivalent of an air cooled top end rebuild.
....... I’d happily buy a high mile 3.8S as a substitute as I think they’re a performance bargain right now. 👍

^^^ Absolutely. What bargains they are too!

Just be aware that there is a known risk, get it scoped before purchase and then buy a clean one.

As has been said, every car will need a rebuild at some point. Even the fabled Mezger cars. In fact Mezgers are well known for needing work but nobody seems to bat an eyelid for some reason! I've just had my turbo's engine rebuilt. Did I cry? Nope but my wallet did. Well worth it though as essentially I've got a new car Very Happy
996 turbo - Available to buy if you're interested: http://911uk.com/viewtopic.php?t=131025&highlight=
986 S - usually in pieces: http://911uk.com/viewtopic.php?t=112626
955 Cayenne Turbo - a work in progress: http://911uk.com/viewtopic.php?t=131286&highlight=
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Joined: 19 Dec 2013
Posts: 1165

PostPosted: Sat Feb 10, 2018 3:57 pm    Post subject: Reply with quote

I have sports chrono, and a manual, and it makes everything that bit sportier so I use it when I am out for a proper drive. Almost never leave PASM on though, it makes everything rather bone shaky. You don't need Sports Chrono, and at your budget I will be very surprised to see you find a good condition car with it. Don't worry about it, I spend 97% of the time with it off.

Something I didn't mention, some dealers give away RAC or AA warranties. They are useless and won't cover "known problems" like Bore Scoring and IMS. I would get it removed and get the price lowered, then if you want one get one from someone who will actually warranty the car!

Interesting comments about not needing to get a car bore scored, but look for the telltale signs. Left hand side tailpipes being sooty are a giveaway, as is the rattly engine which doesn't go away quickly. Beware cars with suspiciously clean tailpipes which have been cleaned of soot!

You don't need Bose, all it adds is a sub and makes little difference. The normal system has 8" subs in the doors I think and they give plenty of bass, if the amp hasn't gone awol, which really isn't unusual! Amp can be fixed by Tore in Norway for about £120.

The thing I would suggest is a short shift kit from ebay. Mine was £30, and transforms the gearchange. No need for the proper Porsche one which are 10 times that!
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Joined: 21 Mar 2015
Posts: 5772
Location: Brighton

PostPosted: Sat Feb 10, 2018 4:44 pm    Post subject: Reply with quote

@ Robertb

Various Engine running faults will cause a single black tail pipe along with any other way for oil to get into a cylinder but not from scored bores .

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Joined: 10 Sep 2017
Posts: 65
Location: Lancashire

PostPosted: Sun Feb 11, 2018 2:19 pm    Post subject: Reply with quote

The truth on bore scoring:

1. You will more likely crash it than it blow up

2. You will spend more on suspension + stereo + servicing +tyres than you will on rebuilds.

3. Tips are more prone than manuals - but its marginal.

4. Proper maintenance and careful ownership reduce likelihood of rebuild - i.e. don't thrash when cold. THIS APPLIES TO EVERY ENGINE EVER MADE.

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spongebob squarepants

Joined: 20 Dec 2009
Posts: 4554
Location: Manchester and Iraq

PostPosted: Sun Feb 11, 2018 2:40 pm    Post subject: Reply with quote

Bore scoring genuinely confuses me as does the professionals opinions on it !!
So we're saying one of the most respected inspection specialist doesn't normally inspect for bore score? But quotes 5%???
Where a forum member mentions his car has scoring but no outward signs? And the real expert (Hartech) who says it's inevitable they will ALL get scoring? I really don't think you can put any percentage on it.
But personally I suspect if you checked every car it would be higher than 5% Dont know
Just my personal opinion but any car around the 25k mark is still great buy there's a risk whatever % that may be, but I'm running some risk outside the OPC warranty for example with a PDK gearbox.
What I don't get is the high price gen1's when your getting close to gen 2 money that doesn't really add up.

991 C2S X51 powerkit PDK in racing yellow, PCCB, PDCC, PSE, Sports design kit, ducktail.
EX 997.2 Carrera 4S PDK
EX 997.2 Carrera S PDK
EX 993 C2 manual in guards red
EX 997 C2 gen 2 PDK
EX 993 Targa
EX 993 Carrera 4 manual
EX 996 3.4 Cabriolet
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alex yates
Brands Hatch
Brands Hatch

Joined: 06 Mar 2014
Posts: 14710
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Sun Feb 11, 2018 2:49 pm    Post subject: Reply with quote

You can't put a % failure rate on something that is still ongoing. i.e. the day the 997 was released, bore scoring was running at 0%. In 20 years time, it could be 90% of engines that have suffered scoring.

........and even if it was a fixed %, then that's over the life of the car. So if it's 10% on cars 10 years old, you'd have had to own the car for the full 10 years for you to be at the 1 in 10 chance of scoring. If you only own the car 5 years, then that % halves and you only have a 5% chance.......and so on.
2000 Manual 996 C4 Arctic Silver Convertible

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Joined: 11 Jun 2013
Posts: 4

PostPosted: Fri Feb 16, 2018 4:59 pm    Post subject: Reply with quote

happened to mine, must be unlucky but can confirm warranty does not cover it as it is "a well known manufacturer design fault."

now got a Gen 2,
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Joined: 30 Jan 2015
Posts: 1441
Location: Somerset

PostPosted: Fri Feb 16, 2018 5:09 pm    Post subject: Reply with quote

Hi Sprint might I ask which warranty company it was that said it's a know fault please
and welcome Thumb
997 3.8 C2S
987 Boxster 3.4S
Disco 3
2012 VW Polo

1964 1071 Cooper S
1964 1071 Cooper S 1991 Pirelli Classic winner
1971 1275 Cooper S as new time warp
1996 106 Peugeot van (pride of the fleet)
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Joined: 11 Jun 2013
Posts: 4

PostPosted: Fri Feb 16, 2018 5:14 pm    Post subject: Reply with quote

Warranty Wise - Gold Cover - they did refund my premium, what a joke!
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Joined: 30 Jan 2015
Posts: 1441
Location: Somerset

PostPosted: Fri Feb 16, 2018 5:18 pm    Post subject: Reply with quote

Thanks for the info I was of the opinion that Warranty Wise were one of the better one's at meeting claims ,we live and learn Thumb
997 3.8 C2S
987 Boxster 3.4S
Disco 3
2012 VW Polo

1964 1071 Cooper S
1964 1071 Cooper S 1991 Pirelli Classic winner
1971 1275 Cooper S as new time warp
1996 106 Peugeot van (pride of the fleet)
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997 Coast

Joined: 04 Apr 2015
Posts: 567
Location: Lytham St. Annes.

PostPosted: Fri Feb 16, 2018 6:12 pm    Post subject: Reply with quote

Porsche 911 (997) Buyers' Guide
Written by Peter Morgan

Model history
The auto industry model year (MY) runs from August 1 to 31 July, so a 2005 model could have been produced between 1 August 2004 and 31 July 2005.

2005 MY: New Type 997 Carrera 325bhp) and Carrera S (355bhp) introduced October 2004. Coupé only with manual and Tiptronic gearbox options. Cabriolet introduced in April 2005.

2006 MY: Carrera 4 and 4S models launched.

2007 MY: 911 (997) Turbo (3.6-litre 'Mezger' engine with max 480bhp) introduced July 2006. Following month GT3 launched with 415bhp (Mezger) and Carrera Targa 4 and Targa 4S in November 2006. March 2007 sees the GT3 RS (415bhp) launch. Same power as GT3 but 20kgs lighter.

2008 MY: In September 2007 the Turbo Cabriolet is introduced with the GT2 (530bhp, Mezger) following in November.

2009 MY: 'Generation 2' Carreras introduced with all new Direct Fuel Injection (DFI) engines. Carrera has 3.6-litre engine with max 345bhp and S has 3.8-litre with 385bhp. In April 2009, Gen 2 GT3 with 435bhp (Mezger) engine. New Porsche Doppel Kupplung (PDK) double clutch gearbox replaces Tiptronic

2010 MY: Launch of Gen 2 GT3 RS, 450bhp (Mezger) and 25kg lighter than GT3. Launch of Gen 2 911 (997) Turbo with 3.8-litre and max 500bhp (DFI engine). September 2009 911 Sport Classic special edition (250 units) launched, with 408bhp. May 2010 911 Turbo S with max 530bhp

2011 MY: GT2 RS introduced with max 620bhp. November 2010 408bhp Carrera GTS introduced (C2 only, Coupé and Cabriolet) and 911 Speedster (408bhp). Black Edition 3.6-litre Carrera introduced in January 2011. May 2011 C4 version of Carrera GTS. May 2011 997 GT3 RS 4.0 with 500bhp (Mezger) engine

2012 MY: With start of 991 production for Carrera and S, 997 Carrera 4 and 4S (including Targa) continues to MY end, when all 997 production ceases.

What's it like?
The 997 represented a significant relaunch of the 911 that included a major body restyling and interior update, while using much of the rolling chassis of the outgoing 996. This included an uprated version of the water cooled Carrera engine - now offered as a 3.6-litre for the Carrera and a 3.8-litre for the Carrera S.

As with all new 911s, both Carreras undoubtedly offered a better package than the previous models and the restyle in particular gave the 997 a more classic attractiveness that was arguably missing on the 996. For everyday driving, the maximum power differences are minimal, with the 3.8S offering better overtaking flexibility.

Like the 996, the 997 models offer 2 + 2 seating with the rear accommodation being OK for medium build adults for short journeys. Fitting child seats is straightforward. The rear seats fold down to make extra storage space, while the front compartment can fit two appropriately sized (small) suitcases.

The Tiptronic gearbox is ideal for urban life and most will use the car as a full auto for most of the time. The Porsche Active Suspension Management (PASM) on the S has a good, but firmish ride for most roads, while the Sport setting feels every bump.

All the models have assisted steering and brakes, making them easy for all builds of driver. The plastic backed sports seats aren't for everyone. The factory option list has various desirable seats that offer increased adjustability, support and height.

The Cabriolet models do not have the hardtop included (as did the 996), and offer a fully electric deployment of the roof. The Targas offer an airy cockpit feel with a very useful opening rear tailgate. For everyday driving few would be able to tell the difference between the rear wheel drive only Carreras and the all-wheel drive models. The C2 is perhaps slightly more agile into faster bends, while the C4 - with the right tyres - might offer advantages on slippery surfaces.

The faster 911s (except the Turbo Gen 2) use the well proven 'Mezger' engine, which has a bullet proof reputation (with obvious conditions applied). The Turbo offers a very attractive, very high performance package that will only appeal to the Alpha driver. The GT3 is surprisingly tractable as an everyday driver, but is nonetheless track focused. The RS is one for the collectors, although again it is surprisingly driveable as an everyday car.

There were a number of 'run out' models offered towards the end of the 997's life, but all were usually larger budget special editions aimed at collectors. The exception was the 911 Black Edition for the 2011 MY. Based on the 3.6 Carrera, this was an all-black themed edition with some useful options such as Bose sound, Cruise, rear Park Assist and the PCM sat-nav.

Which one should I get?
Like all modern Porsches you should not need to feel intimidated by the mainstream 997 models. All are easy to drive and live with. You will notice the immediate differences from a premium saloon in the car's on the road liveliness, handling confidence and massively powerful brakes. These common good features make even the base Carrera a very attractive package, especially when it has the key desirable factory options.

These include Porsche Communications Management (PCM 2 on Gen 1, the far better PCM3 on Gen 2), Bose sound system, Cruise control and rear Park Assist. Nice to have options are the fully adjustable and memory seats, Xenon headlamps and on the Coupé, a tilt/slide sunroof. Perhaps the most popular toy is the Porsche switchable Sports Exhaust (PSE). This allows the driver to switch to a deeper (louder) exhaust note for those moments when you feel the world is against you.

Wheels are more than just a matter of appearance. The standard Carrera S 'lobster claw' 19-inch wheels have very little tyre sidewall compliance and only work because of the softer 'Normal' PASM setting. That makes 19-inch wheels on cars with just the 'coil spring/shock' suspension hard work in terms of ride quality.

For two pedal driving, Tiptronic is a great option for Gen 1 cars, but Gen 2 models offer the excellent PDK auto gearbox.

The 997, like most other Porsches, is an ostentatious automobile and many will prefer the more conservative colours available. These include the dark metallics and solid black, although by far the most popular colour back in the mid-Noughties was Arctic Silver.

What are the running costs?
As with all modern Porsches, the running costs for a well sourced example should be similar to a premium saloon. Service intervals are every two years or 20K miles, whichever comes sooner. Correct servicing is a critical requirement on all 997 models, which includes routine checking of the coolant system.

Servicing costs vary across the country but would typically range from £300-600 + VAT (depending on whether you need a Minor (Intermediate) or Major (Maintenance) service and excluding items like brake fluid change, spark plugs and other wear and tear parts.

General wear and tear items include replacement/rebuild of the air conditioning system. The condensers last around six to eight years in the UK and rebuild cost will be about £1200. Typical clutch replacement is likely to cost £1K (obviously not required on a Tiptronic, although a noisy torque converter should be treated with caution). Clutches can last from 40K miles (a city car) to as much as 80K miles.

Rear main oil seal (RMS) oil leakage can affect 2005-2006 Carreras, but not 2007-onwards cars (which also feature a stronger IMS bearing). Brake wear depends on driving style, but for a manual 3.6-litre car, these typically should last 20K miles. To replace the front discs, pads and pad wear sensors is likely to cost £600 with a similar amount for the rear axle.

The most frequent engine wear and tear item on the Gen 2 Carreras is the tandem vacuum pump. It corrodes out after about 10 years and starts to leak oil from the back area of the engine. It will cost around £500 + VAT to replace.

The Mezger engined 997s have similar body and suspension issues as the Carreras, while the Turbo wastegate actuators should always be checked for free movement.
Tyres should be Porsche N-rated types and these include Michelin, Pirelli, Continental and Bridgestone. You'll see the N-number embossed on the tyre sidewall as N1, N2, N3 etc depending on the version number produced by the given manufacturer. Tyre costs depend on sizes, but typically range from £150-250 each.

What should I look for?
The forums are full of horror stories concerning cylinder bore scoring and failure of the intermediate shaft (IMS) bearing in the Gen 1 Carrera engines. However, cylinder scoring has only affected a small percentage (perhaps 5%) of Gen 1 (pre DFI engine, 58-plate) cars. In our experience it is the larger engined models (the 3.8S models) that are more prone. Most experts would suggest an IMS bearing failure is low risk, but a stronger item was fitted approximately from the start of the 2007 MY (56 plate). The leaky rear main oil seal (RMS) issue that blighted so many of the 996 models was largely resolved by the 997 models.

Many reputable dealers will repaint the front bumper or all the frontal area panels to eliminate unsightly stone chips. This is not something to be concerned about, assuming the colour match and finish is good. That said, these are fast sports cars and accident damage is quite common. It's always worth checking for signs of paint lines in the door shuts, while a paint thickness gauge can spot filled in minor damage and heavier collision signs (the latter may require experienced interpretation). Any kind of non-factory customisation is a negative.

Select your car based on condition, mileage and service history first, then filter by less important items like colour and options. Low mileage isn't always a guideline to condition as, for instance a London based Tiptronic Carrera may have a worn engine from too many cold run short cycles and inevitable scruffy body and wheels. Coolant system condition is important, so check for reservoir cap, radiator and hose leakage. A heavy clutch pedal can suggest the clutch is in its last 10% of life.

A Porsche PIWIS computer on the digital motor electronics (DME) system will reveal data such as active fault codes, over-revs and compare the DME mileage with that shown on the dash. This latter is important as dash mileage adjustment is not uncommon.

Always try to drive the car before you buy. There is no substitute for taking a short run and appreciating whether the car is easy to live with. If you sense anything isn't quite right, it probably isn't. Always switch PASM from Normal to Sport (and Sport Plus if fitted) to sense the change in ride. Similarly try out all the accessories, including PSE if fitted (as the flaps in the exhaust can seize).

With the faster 911s, some experience of their standard performance, ride and handling is invaluable as wear and tear can be higher than the mainstream models.

If you don't have the experience to check the car out yourself, get a pre-purchase inspection expert to look at the car. They will advise on all aspects of the car's condition, what needs replacing now and in the short term and whether the car is valued correctly.
997.1 S2
911 Carrera sport 3.2
944S 16v
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Posts: 1165

PostPosted: Fri Feb 16, 2018 6:26 pm    Post subject: Reply with quote

Warranty Wise are I believe useless, Warranty Direct are very good I think. They will include Bore scoring, IMS, etc. if asked to if I remember rightly. OPC is of course good, but more expensive. But really didn't have any quibbles from them when I claimed for things like coil packs and new amp....

Car does need to be 100% stock though, I couldn't extend because I have a different stereo........
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Posts: 1441
Location: Somerset

PostPosted: Fri Feb 16, 2018 6:45 pm    Post subject: Reply with quote

Resigner Warranty Direct are way better than Land Rover Approved (Car Care) who wont pay out for spun bearings /snapped cranks or oil pump failure as these know issues and excluded for the cover ,yet Warranty Direct do and will allow betterment .The warranty world is a minefield my brother say that most claims that he submits though his garage are rejected due to a wear and tear clause in the policy document Thumb
997 3.8 C2S
987 Boxster 3.4S
Disco 3
2012 VW Polo

1964 1071 Cooper S
1964 1071 Cooper S 1991 Pirelli Classic winner
1971 1275 Cooper S as new time warp
1996 106 Peugeot van (pride of the fleet)
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