General information

• Do not loosen or remove the terminal clamps of the batteries with the engine running.
• Only tow-start vehicle with connected batteries.
• Charge batteries only then with a quick-charger, with the batteries being disconnected from the vehicle circuit. Positive and negative terminals must be removed. Adhere to the operating instructions!
• Installation of additional electrical consumers.
• Coat cables which are to be routed near exhaust systems with fire-proof material.
• Route cables in such a way that abrasion marks can be avoided.

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Electromagnetic compatibility (EMC)

In motor vehicle power-supply circuits, the individual consuming devices cause electrical disturbance variables. Volkswagen AG checks whether electronic components (which are installed by the manufacturer) are electromagnetically compatible inside the vehicle.

If electrical or electronic systems are to be upgraded or retrofitted, it is also required to check their electromagnetic compatibility.

The following standards supply relevant information:

• DIN 40839
• DIN 57879, Part 3
• VDE 0879, Part 3
• VWTL 965
• VWTL 82066
• VWTL 82166
• VWTL 82366

In addition, it is required to consider the EMC Directive 72/245 EC, version 95/54 EC.

More information can be requested from the responsible department.

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Supplementary current-collecting consuming devices

Adhere to the following instructions if additional electrical consuming devices are to be installed later on:

• On special request, provide available batteries and generator with higher output.
• Connect no further consuming devices to fuses which are already assigned.
• Connect no additional lines (e. g. with insulation piercing connecting devices) to available lines.
• Protect consumers with additional fuses sufficiently against short circuits.

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Subsequent installation of an additional battery

An additional battery may only be installed in connection with a D+ relay. This battery may only be assigned to additional consuming devices, such as auxiliary heater, loading tailboard or electrical devices to be used in mobile homes (refrigerator, etc.). If the additional battery is to be placed in the passenger compartment, the ventilation has to be realised using a central degassing tube leading outside.

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Electrical lines

Adhere to the following instructions if electrical lines are to be extended:

• Use only FLKR lines with the same cross section and colour as the standard lines.
• The lines must be coated with an insulating hose (GGVS vehicles with a corrugated hose).
• Attach only original Volkswagen plug connectors to the line ends.
• The connection of electrical lines may only be realised via tapping boxes.
• Cables of the anti-lock brake system may only be extended with original Volkswagen cable-sets.