LA Porsche and BMW Repair

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Servicing the Cayenne Automatic Transmission

Servicing the Cayenne Automatic Transmission We were contacted recently by a PCA club member who asked if it would be possible for him to perform a service on the automatic transmission in his Cayenne. The answer is a qualified yes, it is possible; however, having the required tools and the procedural knowledge for performing this service is critical. After documenting this information, we thought that it might provide an interesting insight for club members as to what is involved in performing this important service for the Cayenne. This is also somewhat indicative of servicing the later model Tiptronic transmission equipped Porsche’s. We recommend you warm up the engine to operating temperature. Drive the vehicle and make sure that the transmission operates properly; shifting correctly in all gears and speeds. Let the car cool down overnight before starting the transmission service. Be prepared to dispose of the fluid and filter properly due to t ... read more

What does it take to wear out a Porsche?

What does it take to wear out a Porsche?

A 24 hour race. The 24 Hours of Le Mans or the U.S. equivalent, the 24 hours of Daytona, are both incredible endurance races where just finishing is a cause for celebration. An intense race like the Daytona 500 takes roughly 3-1/2 hours to complete, however this is a “Walk in the Park” when compared to running a car flat out for 24 hours. Consider that operating a street car under these same conditions would be the equivalent of a lifetime of wear and tear, every mechanical system in the car would be completely used up. Like the wear and tear on the racecar, the people involved are also pushed to the limits. The rules allow for a minimum of 3 drivers per car, some teams will have 4 to 5 drivers per car to complete the 24 hour race. The drivers all take turns at the wheel rotating in one hour driving stints and even double stinting on rare occasion for the driver’s that are in incredible physical condition. When they are not in the car, they are trying to slee ... read more

Categories:

Racing

Porsche Engine Rev Limiter Systems

Porsche Engine Rev Limiting Systems Engine Rev Limiter systems started in the early Porsche 911’s as a mechanical sliding ignition rotor whose sole job was to cut power in the event of an engine RPM over-rev. A section of the ignition rotor would slide outwards driven by centrifugal force depending on the engines RPM speed and would eventually make contact with a ground terminal, shutting the engine off until the engine reached a safe RPM range. The simplicity of the past is now gone and replaced with an extremely accurate electronic control system. The rev limiter for the 9X6’s and 9X7’s utilize a fuel/ignition cut off system operated by the DME (Digital Motor Electronics) controller that engages when the engines RPM reaches a model specific maximum limit. In addition to the current rev-limiter controls, today the DME keeps a record of all engine over-revs. The over-rev capture capability should be checked during a PPI (Pre-Purchase Inspection) be ... read more

Categories:

Maintenance

Beauty is in the Details

Historically, Porsche’s paint quality has always been world class. However, over time, your car’s paint is exposed to combinations of dust, dirt, tree sap, bird dropping, water, chemicals plus everything else in the air which can take a toll on the quality of the finish. Of course, the painted surface of any car must be cared for to maintain its outstanding finish. Unfortunately, not all Porsche owners keep up with the maintenance of the exterior finish. Reasons differ, but the most common is just not having the time to do it yourself. Today, there are many fixed location and mobile professional detailing services that cater to conscientious car owners that want to preserve their cars fine finish. When choosing a detail service business, it is best to get recommendations from someone you trust, your friends, your mechanic, a high quality paint shop or the local PCA (Porsche Club of America) chapter. It is also important to use companies that utilize methods and p ... read more

Categories:

Maintenance

Handling Issues

Porsche has always built cars with incredible performance, handling and braking. From the early days of the 356 to the modern Turbo S and everything in between, all provide balance and handling that makes every automobile manufacturer envious. Drive your Porsche into a corner fast and a completely different personality emerges – a magical personality that the engineers at Weissach make sure is within every Porsche, whether destined for your garage or a checkered flag at Le Mans. Of course, over time, and a lot of corners, suspension components wear and can even break. If you happen to notice an abrupt change in your Porsche’s handling characteristics, be sure to have the problem diagnosed immediately. Whenever a handling issue is experienced, the first thing to check is the tire air pressures. If a tire is deflating, it can cause the car’s handling to become very unresponsive, unstable and potentially create a dangerous situation. A tire with very low air pressur ... read more

Categories:

Suspension