I am sorry but you don't and you will need one to clear codes after the repair.
Reading diagnostic codes is easy. The driver plugs the reader/scanner into the diagnostic port of the vehicle, and the scanner/reader will give a code if there is a problem, and tell them the type of problem.
An OBD2 car diagnostic reader is used to diagnose any problems that a car might have and it saves time and money. For example, if there is an engine check light on, the OBD2 car diagnostic reader can tell what is the problem so it can be fixed as soon as possible.
To plug in a diagnostic reader on a 2001 SLK 320 Mercedes, you need to locate the OBD-II port, which is typically found under the dashboard on the driver's side. Look for a small, rectangular connector near the steering column, usually just above the pedals. Once you find it, you can connect your diagnostic reader to access the vehicle's diagnostic information.
In the dashboard under the radio slightly to the right!
No difference in the engines, just in the ECU (Engine Control Unit) programming. OBD2 doesn't let you have the diagnostic codes without a code reader.
It's a box under your hood labeled diagnostic.
You need a scan tool or code reader to get the codes.
It is under the dash on the driver side.
Obd-on board diagnostic. The port is the plug the scan tool or code reader connects to.
Amazon has a variety of diagnostic tools for cars. The Actron CP99550 OBD-II Pocket Scan Plus Diagnostic Code Reader is reasonably priced (71 dollars) and gets 4.5 stars for a rating.
You need a code reader that plugs into car's diagnostic port.
Should be a port inside under dash where you plug in a code reader.