If your engine temperature gauge is not reading at all, you need to fix it before you keep driving the car. To ignore this could lead to major engine failure, since you will have no way to get an adequate warning that your engine is about to overheat.
It this video Kent will walk you through the step-by-step process of how to determine what is the REAL reason for the engine temperature gauge not working in this 1986 300SDL. In this case there was not movement of the needle on the gauge no matter how hot the engine got.
This video applies to the following: Most Mercedes models from the early to mid 1970's to the early to mid 1990's that have electrical engine temperature gauges. This includes both gasoline and diesel models. The theory of operation and testing procedures are the same on all applicable models.
This video does not cover any actual repairs. It is only an instruction on the theory of operation and how to diagnose the source of the problem. The video does not cover removal and repalcement of the instrument or the sending unit.
Total Run Time: 14:52
How to view this on-demand video:
Once you complete the purchase of this video you will be able to view it immediately when you are logged in and on your personal account page (click on My Account). The video(s) will show up under My Video Manuals. The video is NOT downloadable to your computer or mobile device, but you will be able to view it anytime, from anywhere and from any device as long as you have internet access and you are logged in to your account at mercedessource.com.
Important note: This video manual may or may not include all the information you will need to troubleshoot and/or repair your specific problem/s. Please read the full description carefully to determine if this video is applicable to your year and model and contains the information you are looking for. If not, please refer back to our "Solutions Finder" and enter your chassis number and the specific problem you are having to see if we offer a solution.