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Grounding points

Grounding points

General

There are two main types of grounding point in the car: those that carry a component number, and those with which a component is grounded straight to the chassis, e.g. temperature sensors, oil-pressure sensors, etc.

The car battery is grounded via two cables. One cable has a cross-section of 25 mm 2 and goes straight to the gearbox (grounding point G25).

The other has a cross-section of 16 mm 2 and goes to grounding point G2, which is located behind the battery on the LH wheel housing.


There is a redundancy grounding cable between the gearbox and the LH wheel housing.

For radio interference suppression there is a plaited grounding strap between an engine bracket and the body.

Note that owing to the differences between market variants some of the grounding points enumerated above may be lacking on certain cars.

A given component may be connected to different grounding points depending on whether the car has left-hand or right-hand drive. This is indicated in the pertinent system chart.

Schedule of grounding points




No. Location Fig.
G2

Grounding point LH structural leg (battery): in the engine bay on the side plate in front of the LH wheel housing.



G3

Grounding point luggage compartment: on the floor beneath the rear cluster light



G4

Grounding point floor console (airbag): on the central tunnel between the seats



G7L

Grounding point engine (Lambda): on the side of the intake pipe to cylinder 4



G7P

Grounding point engine (Power): on the side of the intake pipe to cylinder 4



G7S

Grounding point engine (Signal): on the side of the intake pipe to cylinder 4



G14

Grounding point LH seat: under the seat on the floor behind the seat beam



G24

Grounding point RH seat: under the seat on the floor behind the seat beam



G25

Grounding point gearbox (battery): in the engine bay on the gearbox



G27

Grounding point antenna: on the console of the electrically operated antenna



G30

Grounding point LH structural leg: in the engine bay on the side plate in front of the LH wheel housing



G31

Grounding point RH structural leg: in the engine bay on the side plate in front of the RH wheel housing



G33P

Grounding point connector console (Power): in the cabin below the LH A-pillar



G33S

Grounding point connector console (Signal): in the cabin below the LH A-pillar



G34P

Grounding point control-module console (Power): in the cabin below the RH A-pillar



G34S

Grounding point control-module console (Signal): in the cabin below the RH A-pillar



G35

Grounding point dashboard: on the side wall behind the connector console under the LH A-pillar



G36

Grounding point rear seat (Convertible): between LH secondary B-pillar and control module soft-top opening



G37P

Grounding point (Power): in the cabin below the RH A-pillar (above grounding point G34)



G37S

Grounding point (Signal): in the cabin below the RH A-pillar (above grounding point G34)



G38

Grounding point floor console: on the central tunnel between the seats



G39

Grounding point rear seat RH (Convertible): beneath RH rear-seat loudspeaker