2012 Audi S4 Standard TransFACTORY OEM SERVICE PROCEDURE

Electrical Component Locator: Grounds

GROUNDS LOCATION

Component Location
G12 (Avant) (11) Left rear of engine compartment. See Figure.
G12 (Sedan) (11) Left rear of engine compartment. See Figure.
G50 (Avant) (9) Left side of luggage compartment. See Figure.
G50 (Sedan) (9) Left side of luggage compartment. See Figure.
G51 (Avant) (6) Right side of luggage compartment. See Figure.
G51 (Sedan) (6) Right side of luggage compartment. See Figure.
G61 (Avant) (8) Behind left quarterpanel. See Figure.
G61 (Sedan) (8) Left "C" pillar. See Figure.
G62 (5) Right "C" pillar. See Figure.
G615 (Avant) (13) On left front strut tower. See Figure.
G615 (Sedan) (13) On left front strut tower. See Figure.
G624 (Avant) (7) Middle of luggage compartment, near battery. See Figure.
G624 (Sedan) (7) Middle of luggage compartment, near battery. See Figure.
G638 (Avant) (2) Behind right kick panel. See Figure.
G638 (Sedan) (2) Behind right kick panel. See Figure.
G639 (Avant) (12) Behind left kick panel. See Figure.
G639 (Sedan) (12) Behind left kick panel. See Figure.
G654 (5) Top of right "D" pillar. See Figure.
G671 (Avant) (14) On left front long member. See Figure.
G671 (Sedan) (14) On left front long member. See Figure.
G685 (Avant) (1) On right front long member. See Figure.
G685 (Sedan) (1) On right front long member. See Figure.
G687 (Avant) (10) Left side of center tunnel. See Figure.
G687 (Sedan) (10) Left side of center tunnel. See Figure.
G688 (Avant) (3) Right side of center tunnel. See Figure.
G688 (Sedan) (3) Right side of center tunnel. See Figure.
G730 (Avant) (4) Base of right "C" pillar. See Figure.
G730 (Sedan) (4) Base of right "C" pillar. See Figure.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.