What Goes Wrong with the Porsche Cayenne?

When you buy a luxury car, you expect quality. Porsche sells some of the more high-end luxury cars on the market, and one of these is the Porsche Cayenne. If you’re a Porsche Cayenne owner, you might be wondering what, if any, malfunctions might be in your near future.

Some of the most common problems consumers run into with the Porsche Cayenne include transmission issues, stalls, windshield wiper failure, and engine problems. That said, Porsche Cayenne is a good car and garners few complaints from consumers. It rarely needs to be repaired.

Porsche Cayennes are not perfect cars and can have trouble anywhere from interior rattling to engine failure. Let’s go into a bit more detail about what each of the problems listed above can mean for your car and your wallet. After all, you want to be prepared for any auto maintenance expenses coming down the road.


The transmission is the machine that shifts your car from one gear to another, allowing you to accelerate or slow down smoothly. When the transmission is faulty or old, gear shifts can get a little nerve-wracking. For a Porsche Cayenne, transmission issues include:

  • Shift Delays: Sometimes a Cayenne’s transmission will not switch gears for several moments after you’ve applied pressure to the gas pedal or the break.
  • Jumping During Acceleration: When a gear gets caught or skipped, it can cause an uncomfortable jump.
  • Grinding: When accelerating, you might experience a grinding sound or sensation. This can also be caused by gears getting stuck.
  • Shaking: When accelerating or slowing down, you might notice some mild to severe shaking as your transmission tries to keep up with your changing speeds.
  • Burning Smell: If you’ve overheated your transmission, or are low on transmission fluid, it could cause a burning smell.
  • Whistling Noises: “The whistling noise from the transmission could be either a thrust bearing failing or a clutch pack is slipping under certain conditions,” (Source).

According to Firestone Complete Autocare, leaving transmission problems to fester can bring a decrease in your fuel economy. Instead of paying for repairs, you’ll be paying an arm and a leg for gas. It’s always a good idea to bring your car in if you suspect anything is wrong.

How Can I Avoid Transmission Problems?

Any sort of problem with the transmission is better avoided as much as possible. You can take care of your transmission by:

  • Getting the transmission fluid changed regularly (about every 30,000-60,000 miles).
  • Do NOT ride the brakes. If you live in a hilly area, it is better to use the engine brakes when you can.
  • Avoid towing most loads. Check the owner’s manual to make sure your transmission can handle the weight.


It’s always scary when the vehicle stalls while driving, no matter how fast you’re going. There are several reasons these stalls could be happening, and they are:

  • Corrosion: If the wires connecting the ignition to the engine don’t have a constant secure connection, the car won’t have enough support to keep the power on, so the car will shut off.
  • EGR Valve: This valve must remain open for smooth, consistant driving. It can become clogged or dirty, which can cause some strange noises and stalling.
  • Fuel Pump: When there is low fuel pressure or a broken fuel pump, fuel cannot get to the engine, which is a big problem, since that’s what makes the car run.
  • Transmission: The torque converter is supposed to transmit power to the engine. If the torque converter in the transmission cannot function properly, the car cannot run.
  • Sensors: There are two sensors that regulate how much oxygen enters the stream of fuel, the oxygen sensor and the mass flow sensor. Your Cayenne requires just the right amount of oxygen to keep the engine running.

It’s always a good idea to keep your vehicle clean, lubricated, and mechanic-approved. If you are having stalling issues, take your car to a mechanic immediately. They will be able to diagnose and fix the problem so you can drive safely again soon.

Windshield Wipers

You might not think that faulty windshield wipers are more than an inconvenience, but they can be dangerous while you’re driving through intense rain or snow with no way to clear the windshield and see the road. Below are a few reasons your wipers might not work on a Porsche Cayenne:

  1. Fuse: If the fuse is shot, damaged, or fried, the wipers won’t work.
  2. Relay: Sometimes the message is not getting from the wiper control lever to the motor.
  3. Motor: When the wiper motor doesn’t work, you’ll probably just have to replace the whole thing.
  4. Hood Wires: If the computer thinks your hood is open, the front wipers won’t work. Check the wiring for the hood lock.

Most of these are simple fixes, so it shouldn’t be too much of an inconvenience for you to get your wipers fixed. To prevent these sorts of problems, pay attention to how much precipitation is coming down so you don’t burn out the motor, and always firmly close your hood, checking that the latch has engaged.


Possibly the most important component of a car is the engine. It makes the car go, and if something happens to it, the situation can take a dangerous turn quickly. Here are some common Porsche Cayenne engine problems to look out for:

  • Oil Consumption: Some engines will burn through more oil than others, so keep an eye on your oil levels.
  • Misfire: Can cause a stumble in your engine, or a decrease in speed. Take this as a sign that there is a bigger problem.
  • Rattling Noises: Strange noises under the hood are never a good sign. Get it checked out so the problem can be addressed.
  • Oil Leaks: The engine needs oil to run smoothly. If the oil is leaking, your engine will have nothing else to burn but itself.
  • Coolant Leaks: Without proper cooling, the engine will overheat, so make sure your coolant is full, and the system is working.

Hopefully, that gives you an idea of what to be on the lookout for with your Porsche Cayenne. Porsche makes quality, comfortable cars. Again, there haven’t been a lot of complaints about Porsche Cayenne malfunctions, but these are just a few of the most common complaints.

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