As R170 SLKs become second- and sometimes third-owner cars, the parts and accessories on them might not necessarily be assembly-line original. Knowing the car's at-birth configuration helps immensely when ordering parts and accessories.
The car's as-assembled equipment is listed on its DataCard, which is normally included with the original owner's manual. This card contains codes for the car's original parts: standard components as well as its options.
If you don't have the DataCard, the information can usually be sourced using the car's VIN. Various Russian websites offer this service. When this was written, one that was up and running was "Car Info Kiev": http://carinfo.kiev.ua/cars/vin/mercedes/vin_check?su=syrvzr
This site generated the following data for our pre-facelift 2000 SLK230 Kompressor project car:
Sales name SLK 230 KOMPRESSOR
Delivery date 2000-01-04
Interior color 227A
Engine 111973 12 084001
Front axle AL1910X1014835423121
Gearbox 722605 01 944735
Lights units BOSCH
Retarder 8 000104
227A LEATHER TWO-COLOR (RED)
231 GARAGE DOOR OPENER
249 INSIDE AND OUTSIDE MIRROR AUTOMATIC DIMMING
254 RADIO MB AUDIO 30 - USA
309 CUP HOLDER
423 5-SPEED AUTOMATIC TRANSMISSION
441 STEERING COLUMN, ADJUSTABLE
461 INSTRUMENT WITH MILES IND. AND ENGLISH LEGEND
494 U.S. VERSION
524 PAINTWORK - PRESERVATION
551 ANTI-THEFT/ANTI-BREAK-IN WARNING SYSTEM
580 AIR CONDITIONER
600 HEADLAMPS - CLEANING EQUIPMENT
634 DELETION - FIRST AID KIT
636 DELETION - WARNING TRIANGLE
668 PACKAGING FOR SHIPPING VEHICLES WITH TIE-DOWN HOOK
669 SPARE WHEEL / FOLDING WHEEL
673 HIGH-CAPACITY BATTERY
810 SOUND SYSTEM
875 HEATED SCREEN WASH SYSTEM
For a complete list of R170 Data Codes, click here [link to PDF]. Alternately, do a web search for R170 option codes.
The Russian sites are allegedly fairly accurate for pre-2000 models. Our project car has a few M-B accessories that aren't listed above, such as the 10-CD changer (Code 756) and the First Aid Kit. These might've been dealer-installed, acquired later, or possibly the Russian site isn't definitive in our case.
If the Russian search doesn't work for your car, some of the fuller-featured diagnostic scan tools can read the DataCard info from the car's ECU. A dealership or M-B specialty shop might be of service for this approach.
Failing those options, some members of the enthusiast forums are able to retrieve DataCard info from VINs. Search "DataCard" or "Factory Option Codes" for appropriate threads on your favorite M-B forums.
One final possibility is Mercedes-Benz's EPCnet Online site (epc.startekinfo.com). Registration is free to US addresses, but the search features don't function on Macintosh or Linux systems.
The DataCard lists what's on the car but doesn't detail all of the available options. According to the M-B Workshop Information Systems (the digital shop manual), these are the available options for our pre-facelift 2000 SLK230 Kompressor. This list is a representative example of the R170 offerings:
Accessory Control Display
Alarm System Transmitter
Antitheft and Alarm Systems
Cellular Phone Microphone
Cellular Phone Transceiver
Collision Avoidance and Parking Assist Systems
Compact Disc Player (CD)
Crash Control Module
Driver/Vehicle Information Display
Emergency Contact Module
Garage Door Opener Control Head
Garage Door Opener Transmitter
Global Positioning System
Hood Sensor/Switch (For Alarm)
Key Indicator Lamp
Keyless Starting System
Parking Assist Distance Sensor
Towing / Trailer System
Voice Activation System
This list gives an idea of possible up-fitting options using factory components.
Many vehicles have data plates/placards that contain paint codes and other information about original equipment. For R170 SLKs and many other Mercedes-Benz models, this information is contained on a DataCard, originally included with the owner's manual.
Contrary to our project car's VIN-derived DataCard (the original one is no longer in the car), it has the optional trunk-mounted CD changer.
Similarly, the "delete" option is indicated for the First Aid Kit, but the car has one. Either the VIN search isn't totally accurate, or the kit and possibly the CD changer were added after the car left Germany.
Even if the optional hardware isn't on the car, the accommodations for it might already exist. Hidden behind the trunk's side panels are harnesses for the CD changer, console-mounted cell phone, and other cutting-edge-at-the-time technology.