(hmmm, so maybe on the Facelift SLK's-- they just made the wire a "right angle", but the Sensor and Location remained the same) Mercedes Benz Workshop Manuals > SLK 230 (170.449) L4-2.3L SC (111.983) (2001) > Powertrain Management > Ignition System > Sensors and Switches - Ignition System > Crankshaft Position Sensor > Component Information There should be a fuse for the horn somewhere. It’s the the multifunction relay unit that is to do with the indicators, see… SLK Indicator lights staying on - Possible fix - Mercedes-Benz Forum There is also 5 relays, horn is mentioned below., worth looking at anyway. See… Hello, my previous question and reply isn't showing up so thought I'd write it again, just changed the switch over , all lights seemed fine, engine light came on 5 mins later, garage diagnosed multiple faults and said it could be because of the change, disconnecting fusebox they cleared them, seemed OK for 30 mins , engine light back on and the lights warning on now too bit lights seem OK.. Fig. 4: Mercedes-Benz SLK230 1998 - Component Locations - Locating Fuses On Fuse Block "A" Of Engine Compartment Fuse & Relay Box F1 Get Access all wiring diagrams car Fig. 5: Mercedes-Benz SLK230 1998 - Component Locations - Identifying Fuses 1-9 On Fuse Block "A" Of Engine Compartment Fuse & Relay Box F1 1) disconnect battery. 2) disconnect wire harness on the module. 3) pull up on the pump/module to separate it from the car/fender well. 4) remove the 4 screws holding it to the pump (I had to tweak it a bit to clear the fuse box. 5) pull the module away from the pump to disconnect it. 6) install in reverse order. In this article, we consider the second-generation Mercedes-Benz SLK-Class (R171), produced from 2005 to 2011. Here you will find fuse box diagrams of Merced 1999 mercedes slk 230 wiring diagramFuse slk manuals workshop mercedes 3l l4 sc benz 2000 Slk fuse r171 mercedes diagram box benz 2004 compartment luggage 2010 fused functionMercedes-benz slk-class (r172) (2010-2018) fuse diagram • fusecheck.com. Hi, the fuel pump relay is located inside the K40 relay module. If you suspect a bad fuel pump relay you will need to replace the complete K40 relay module. The K40 relay is located in the module box under the hood next to the battery. Remove the cover from the box and you will see a long relay with some fuses in the top. That's the K40 relay. hp2VNi.