Mercedes Benz brake light switch stop light switch - where is it - and how to know how to find it

Here is a comprehensive list on where your brake light switch, stop lamp switch, brake pressure switch, pedal angle sensor are all located. model chassis location CLA W117 switch under dash CLA W118 switch under dash, hybrids have sensor on pedal E W124 switch under dash SEL-SEC-SDL W126 switch under dash SL R129 switch under dash S W140 switch under dash GLA W156 switch under dash ML W163 2 pressure switches on master cylinder AND stop lamp/cruise control switch up to production 08/02 then 1 pressure switch on master cylinder ML/GL W/X164 pressure switch on master cylinder ML/MLE/GL/GLS W/X166 switch under dash GLE/GLS W/X167 switch under dash SLK R170 switch under dash SLK R171 pressure switch on master cylinder SLK R172 switch under dash A-Class W176 switch under dash A-Class W177 switch under dash unless hybrid, sensor on pedal under dash AMG GT 190 switch under dash SLS AMG 197 switch under dash SLR 199 switch under dash and pedal sensor near master cylinder C-class W202 switch under dash C-class W203 2 switches on master cylinder and 1 Switch under dash up to build date 07/01. 1 switch on master cylinder as of 08/01 C-class/GLK W/X204 switch under dash C-class W205 switch under dash, hybrids have sensor on pedal E-coupe W207 switch under dash CLK W208 Switch under dash with ASR- 1 pressure switch and brake switch with ESP CLK W209 pressure switch on master cylinder E-Class W210 switch under dash E-Class W211 sbc has switch under dash and pedal sensor on master cylinder-ABR has switch under dash E-Class W212 switch under dash, hybrids have sensor on pedal as well E-Class W213 CL W215 switch under dash and pressure switch on master cylinder CL W216 switch with basic esp, pressure sensor inside esp module with high end esp S-coupe W217 switch under dash, or pedal sensor if hybrid CLS W218 switch under dash CLS W219 sbc has switch under dash and pedal sensor on master cylinder- ABR has switch under dash S-Class W220 pressure sensor and stop light switch S-Class W221 stop lamp switch with basic esp- pressure sensor integrated into the hydraulic unit with high end esp S-Class W222 switch under dash-hybrids have pedal value sensor under dash SL R230 switch under dash and position sensor on master cylinder SL R231 switch under dash E-class W238 switch under dash and pressure sensor built into hydraulic unit Maybach W240 switch under the dash and pedal sensor on brake pedal B-CLASS W242 switch under dash W246 switch under dash GLA-GLB W247 pedal angle sensor for hybrid- switch under dash normal R-class W251 pressure switch on master cylinder CLS W257 switch under dash- pedal sensor with hybrid GLE X292 switch under dash EQC X293 pedal angle sensor Smart 451 switch under dash Smart 453 brake vacuum switch on booster G-wagon 463 pressure switch on master cylinder and stop lamp switch depending on year- too many variations GLC-class x253 stop lamp switch under dash AMG GT x290 switch under dash, or pedal sensor if hybrid