What is Park Distance Control BMW?
Your BMW is equipped with both front and rear parking sensors called Park Distance Control, or PDC. The sensors monitor the areas at the front and rear of the car and issue an audio and visual alert to potential obstacles. The system is automatically switched on when reverse gear is selected.
What are the symptoms of a bad cooling fan relay?
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
Is it bad to change out a relay?
If you change out the relay and it doesn’t fix your issue, it just means you have a good spare, which is never a bad thing. Relays are fairly common between brands of vehicles, so it could probably be used in more than just the one you’re replacing it in.
What to do if your reverse parking sensor is not working?
To correct the problem, just choose another location a few inches higher on the rear of the car. Although many luxury cars come with built-in reverse parking sensors, it is an upgrade or option on many cars. That means there are many luxury cars that are sold without the option.
What do you hear when you flip the switch on a relay?
The “thunk” you heard when you flipped the switch was the sound of the relay throwing somewhere above the ceiling.
When do reverse parking sensors begin to malfunction?
Reverse parking sensors may begin to malfunction over time, or if you have been in an accident, and when a driver isn’t aware of the problem, things can quickly get dangerous. If you notice anything off with your sensor, test it out immediately.
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
The “thunk” you heard when you flipped the switch was the sound of the relay throwing somewhere above the ceiling.
What does it mean if a relay is always hot?
As long as the relay doesn’t have a diode in it, that’s fine. It’s just a switch. Current can flow in and out either side of the switch. If the only thing you find wrong is that 87 is always hot and 30 goes to the device instead of the other way around, don’t worry about it.