FAQ EDC Pumps / W202/W210 W463 ECU’s
FAQ EDC Pumps / W202/W210 W463 ECU’s
The W210 glow plug relay is controlled by something more complex than a simple 12V "go" signal. Some friends tried to get one to work without the ECU and didn't have any luck at all. The relay also passes data back to the ECU indicating success/failure of the glow cycle. If you are using the W210 instrument cluster, it will report glow plug issues recorded by the ECU.