gf2719p1201acm

Steering wheel gear shifter component description

Type gf · topic 27.19 · version 0101 · 2008-11-17

Applies to: TRANSMISSION 722.643 /649 in MODEL 230.4 with CODE (428) Steering wheel shift paddles as of Model Year 2009 /modification year 08 model refinement package

Where it sits

Function group 2 Chassis › 27 Automatic transmission › 27.19 Transmission - electrical system — Series 230 (models 4**)

Also applies to engines/gearboxes: 722 643, 722 649

GF27.19-P-1201ACM

Steering wheel gear shifter component description

10.11.08

TRANSMISSION 722.643 /649 in MODEL 230.4
with CODE (428) Steering wheel shift paddles
as of Model Year 2009
/modification year 08 model refinement package

Steering wheel gear shifter component description

P27.60-3000-12

View of multifunctional steering wheel (MFL) from left, shown on model 230.477

S110/1 Steering wheel gear shifter MINUS

Location

Located on the rear side of the multifunction steering wheel at the left is the MINUS steering wheel gear shifter and at the right the PLUS steering wheel gear shifter (S111/1).

Task

- Selection of shifting range in "C" or "S" transmission mode

- Shifting into a gear from which the vehicle can be favorably accelerated or decelerated

- Direct shifting of all forward gears in manual transmission mode "M" (except model (230.477 with code (494) USA version)

Function

The steering wheel gear shifters MINUS and PLUS are read in by the steering column tube module (N80) via the steering LIN (LIN E1). The steering column tube module places the "Downshift" or "Upshift" signals on the engine compartment CAN (CAN-C). The ETC [EGS] control unit (N15/3) receives the signal via the ME-SFI [ME] control unit (N3/10) and triggers the gear change.

Shifts, which could result in impermissibly high or low engine speeds, are not performed.