| No. | Name
        
       
       
        
         Location | Illus. | 
     
      |  | Components |  | 
     
      | 1 | Battery
       
       
        in engine bay |  | 
     
      | 2 | Generator,
       
       
        
         B207:
        
        on the front long side of the engine (right)
       
       
        
         Z18XE, B284:
        
        on the rear long side of the engine (right) |   | 
     
      | 4 | Starter motor,
       
       
        
         B207, B284:
        
        on the front long side of the engine (left)
       
       
        
         Z18XE:
        
        on the rear long side of the engine (left) |   | 
     
      | 331 | Airbag control module,
       
       
        on the centre tunnel behind the gear selector unit | link | 
     
      | 342 | Underhood electrical centre 342 (UEC)
        
       
       
        next to battery | 4 | 
     
      | 589 | Trionic engine control module, 4-cyl petrol,
       
       
        on front of engine | A
        
       
       
        
         B | 
     
      | 608 | Control module, Motronic E9, V6 petrol
       
       
        at the top of the rear cylinder bank | A
        
       
       
        
         B | 
     
      | 700 | Battery disconnector,
       
       
        on the battery's positive pole |   | 
     
      | 705 | Control module, Simtec
       
       
        at the top of the left end of the engine | A
        
       
       
        
         B | 
     
      |  | Crimp connections |  | 
     
      | J97 | 4D/5D:
        
        Approx. 110 mm from branching of grounding point G33P/S towards the left rear door
       
       
        
         CV:
        
        Approx. 70 mm from branching point grounding point G33P/S towards the LH rear door |   | 
     
      | J98 | 4D/5D:
        
        Approx. 160 mm from branching of grounding point G33P/S towards the left rear door
       
       
        
         CV:
        
        Approx. 170 mm from branching point to grounding point G33P/S towards the LH rear door |   | 
     
      |  | Grounding points |  | 
     
      | G2 | On the side of the left structure strut by the connector bracket | B207
        
       
       
        
         Z18XE
        
       
       
        
         B284 | 
     
      | G7 | B207
        
        : On the engine control module upper right-hand attachment lug
       
       
        
         Z18XE:
        
        On support bracket under intake manifold | Z18XE
        
       
       
        
         B284 | 
     
      | G14 | By the seat member under the left seat |   | 
     
      | G25 | On the left engine mounting
       
       
        
         B284 AUT:
        
        On a bracket on the front of the gearbox |   | 
     
      | G33P | On the floor below the LH A-pillar (black tape) |   | 
     
      | G33S | On the floor below the LH A-pillar (BK/WH cable) |   |