PORSCHE 911 (2005 - Present) Fault Guide

Evolutions

Year Change or development
0 Porsche 911 was launched in 2005. For full engine performance, specifications, dimensions and other key stats, visit our ‘figures and specs’ section.

Bodywork and External Checks

Area What to look for What it means What to do
Bodywork (horn damage) Check that the horn (the controls of which are located on the center of the steering wheel boss) actually works. If the horn is broken, it will have been damaged by a stone or road debris as it, along with the air-con condenser, is mounted right at the front of the car. It it’s damaged it means taking off the bumper, replacing the horn, and then replacing the bumper. If you find this fault then try to reduce the price of the car by £200.

Engine Checks

Area What to look for What it means What to do
Engine: All models except GT2, GT3 and Turbo: (Rear Main Seal) With the engine cold, and where safe, look under the engine of the car. Toward the front of the engine, just behind the sump plate, is the Rear Main Seal (RMS) which is the seal between the engine and the gearbox. This seal can fail, a known and common problem on later variants of the 911. Check the service history to see if this has already been repaired. Even if it has, there is still a chance it will break again. If this seal is leaking it will need to be replaced. If the car is under warranty (2 years) then Porsche may replace it for free. Otherwise try to negotiate at discount of £1200 off of the price of the vehicle.
Servicing: Check that the car is not due an expensive alternate service. These are every first and third, then alternate 20,000 miles. If the car is due a service then you will need to budget for it. If the car is due an alternate 20,000 mile service then try to reduce the price of the vehicle by £1020.
Servicing: Check the service history. If there has recently been a full service which included spark plugs then make sure there is a receipt for the coil packs which should have been done at the same time. Test drive the car. Check for rough running at idle and hesitancy with the revs raised to 1500rpm. If the coil packs have not been replaced then you will have to budget for them. They cost £30 each, and there are 6 of them. During the service the labour is free, but done as a separate job it can get expensive. Rough running at idle can also indicate that the coil packs need replacing. If you find that the coil packs need to be replaced then try to reduce the price of the car by £350.

Interior Checks

Area What to look for What it means What to do
Interior: (If fitted with Sat-Nav) Check that the satellite navigation is working properly. Make sure the system will accept, locate and plan the route to a destination and that the screen is smooth with no jerkiness at all. If the Sat-Nav is not working properly then, unless you can live with it, either the DVD will need updating or the module may need a repair. If the Sat-Nav is broken it is advised to have the system checked by a qualified technician as replacement can be extremely expensive. If not, then try to negotiate a discount of at least £1000 off of the price of the car.
Interior: Test drive the car. Make sure that the Air-Conditioning is working properly. Switch the air-conditioning on to full cold and check that, after 30 seconds or so, the air coming out of the vents is icy-cold. Also, with the engine cold, check for a sweet smell from the front mounted condenser (this looks like a mini radiator right at the front of the car). If the air coming out of the vents is not icy-cold, or there is a sweet smell from the condenser then the air-conditioning will need attention. Most likely the condenser will need replacing. It’s right at the front of the car, in front of the radiator and, consequently, is often damaged by stones and road debris. The condenser will need to be replaced and the system re-gassed. If you find this fault then try to negotiate a discount of £1000 off for the price of the car.
Interior: Check the driver’s seat for excessive play. This will be side to side, not back and forth. If you find this fault then the seat frame will need to be removed and rebuilt. If you find this fault and the seat needs to rebuilt, then try to negotiate a discount of £500 off of the price of the car
Interior: (Windows) Sit in the car and operate both of the electric windows independently of each other. Listen out for a creaking sound as they go up and down. If you hear a creaking sound as the windows go up and down then there is a problem with the regulators. These will need to be replaced. If the car is under warranty (2 years) then Porsche may replace the regulator for free. Otherwise try to negotiate at discount of £250 off of the price of the vehicle per affected window.

Wheels, Brakes and Suspension Checks

Area What to look for What it means What to do
Tyres: Inspect the outside edges of the tyres. The legal limit for tread depth is 1.6mm above the base of the groove across 75% of the tyre If driven hard, and they usually are, the 911 can get through tyres quickly. Replacements are very pricey. Budget £250 per tyre that needs replacing. It is advised to do a complete axle at one time. So one tyre will essentially cost you £500.
Brakes: Look through the middle of the wheels to the brake discs. They should have uniform wear all the way round. They should not be pitted. If the brakes are cold, feel the back of the discs through a gap in the wheel. They should not be pitted or scored, nor should they have a large lip on the edge of the disc (a large lip is a few millimetres). The disc should be evenly worn across the face of the disc. If the brake discs are pitted or prematurely worn, they need replacing. You need to do both sets on each axle. Budget £700 per affected axle.
Suspension: Test drive the car. Listen out for a gentle creak from the front suspension, as the car passes over speed bumps. If you hear this sound then it may be a fault with the lower wishbone arm, this part will need replacing. If you find this fault then try to negotiate a discount of £300 per affected corner of the car.
Suspension: Test drive the car. Find some speed bumps and drive gently over them. Listen out for a gentle knocking from the suspension as you do this. This knocking may indicate a problem with the fork for the lower wishbone arms in the suspension. This will need to be replaced. If you find this fault then try to negotiate a discount of £250 per affected corner of the car.
Gearbox: (Tiptronic models) Test drive the car. Where safe, change between the gears at ¾ throttle. Check via the rev-counter that there is no sudden surge in revs as you change gear. These faults could indicate problems with the Tiptronic gearbox. If you suspect problems with the gearbox then it is advised to have the car inspected by a qualified technician as repairs or replacement can be very, very expensive.

Recalls

Date Model Recall
18 May 2004 Front seats are fitted with seat backs that do not meet the rigidity Porsche AG demands.
29 Mar 2005 Built: 01/02/1994 - 01/02/1998 There is a possibility that when the convertible top is closed, the convertible top is not completely locked even though the warning lamp is extinguished. This could lead to the roof opening whilst the vehicle is in motion.
29 Mar 2005 Built: 01/02/1994 - 01/02/1998 There is a possibility that when the convertible top is closed, the convertible top is not completely locked even though the warning lamp is extinguished. This could lead to the roof opening whilst the vehicle is in motion.
19 Jan 2006 The welded seams on the exhaust tailpipe may fail. This can cause rattling noises while driving and can result in the loss of the exhaust tailpipe if the driver continues to drive the vehicle.
24 Jan 2006 Built: 22/11/2005 - 13/12/2005 A bearing flange on the parking brake lever is likely to break. If this occurs the parking brake will be ineffective.
26 Mar 2007 It has been identified that the possibility exists that a faulty seat belt buckle has been installed as part of the six- point seat belt harness. If a faulty buckle has been installed, it may not be possible open the buckle following an accident, if the belt straps have been subject to a tensile load, thus requiring the seat belt straps to be cut, before the occupant could leave the vehicle.
12 Dec 2007 The switch console for the PASM (Porsche Active Suspension Management) and TC Off (Traction Control) may be defective and give incorrect signals or cause the above systems to fail.
09 Oct 2008 It has been identified that, it is possible that the threaded joints on the chassis of subject vehicles may not have been tightened to the prescribed torque. This may result in the screws becoming loose, resulting in noises from around the vehicle. Should the screws detach, steering control can become impaired.
09 Oct 2008 It has been identified that, it is possible that the threaded joints on the chassis of subject vehicles may not have been tightened to the prescribed torque. This may result in the screws becoming loose, resulting in noises from around the vehicle. Should the screws detach, steering control can become impaired.
01 Jan 2009 Due to vibration, it is possible that stress cracks make occur on the engine spacer. This will normally result in noises, however, it is possible on high milage vehicles for the spacers to become detached.

Recommended Garages

Name Phone Address Website
MOT ANGEL (Nationwide) 0800 131 0030 3 The Minster, Portman Road, Reading, RG30 1EA. http://www.motangel.co.uk
Porsche Centre Colchester 0845 452 1587 Auto Way Ipswich Road Ipswich Road Essex
Porsche Centre Swindon 0845 558 5914 Ashworth Road Bridgemead Bridgemead Wiltshire
911 Sport 0845 243 5665 Achurch Road Lincolnshire
911 Box County Garages 2 Commonside 2 Commonside www.911box.co.uk//?utm_source=Spidersnet&utm_medium=Link&utm_content=Used-Car-Expert&utm_campaign=Referring-sites