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Home >> Mercedes Benz >> 2010 >> SL550 >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Anti-Theft & Central Locking - 230 Chassis >> Testing & Repair >> Remove/install Keyless Go control unit - AR80.35-P-0001R

Remove/install Keyless Go control unit - AR80.35-P-0001R

MODEL 230.4 

with CODE (889) Keyless Go 

except CODE (P99) "AMG Black Series" special model 

Fig 1: Identifying Keyless Go Control Unit Components
G05075079Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install    
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
1 Remove left side paneling in trunk   AR68.30-P-4800R
2 Continue to press Keyless Go start/stop button until ignition is switched off and remove Keyless Go transmitter card or transmitter key from vehicle and store outside of transmission range (min. 2 m).    
3 Disconnect electrical connector from Keyless Go control unit (N69/5)    
4 Unscrew bolts (1) and remove Keyless Go control unit (N69/5)    
5 Install in the reverse order