Which is the best car battery for a Porsche Cayenne?
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How big is the backup battery in a Cayenne?
The capacity of the backup battery is 480 A/85 Ah. If two batteries are fitted to the vehicle (main battery and backup battery), these are connected or disconnected to the bus bar in the power distributor through a relay.
What happens if you disconnect the positive lead on a Porsche Cayenne?
If you disconnect the positive lead first, there is a chance that your tool may touch the metal chassis. This will result in a short circuit which would be can be dangerous to both the car and you. Be sure to purchase a battery that has the same group number and CCA rating (Cold Cranking Amps).
What to do if your Cayenne Battery is dead?
If your battery is completely dead, you’ll need to connect an auxiliary 12 volt power source to the jumpstart terminal and ground in the engine compartment to provide power to the switches. Loosen and remove the T25 Torx screw holding the rear foot vent to the battery compartment cover (green arrow).
What happens when a Porsche Cayenne Battery dies?
On the Porsche Cayenne, a dying battery can cause a multitude of electrical glitches, Check Engine Lights (CELs) and slow starter operation. I’ve also noticed that a persistent PSM Failure message on the dash can also be a symptom of a dying battery.
How big is the battery in a Cayenne?
From the 2004 Cayenne Technik Book… Depending on specification and air-conditioning zones, the Cayenne is fitted with a battery having a capacity of 340 A/70 Ah to 450 A/95 Ah. As on the Cayenne S and Cayenne Turbo, the alternator is water-cooled and has a nominal output of 2100/2660 watts, depending on battery capacity.
How does the battery switch in a Cayenne work?
The switching of the two batteries is controlled independent of the load management (function is integrated in the vehicle electrical system control unit). The starter relay of the 2nd battery is actuated parallel to the starter relay.
Can a Cayenne be fitted with a spare wheel?
On the Cayenne, the optional backup battery cannot be fitted in conjunction with a 17″ collapsible spare wheel. In order not to exceed the maximum permitted rear axle load, no Cayenne model can simultaneously be equipped with the backup battery, a full-size spare wheel on the external holder and a trailer towing device.