Been looking to see how much it would cost to get the Glow Plug Relay repaired / replaced on a 2011 E200 CDI W212 series. It appears that the OEM part is Beru. Beru Parts Catalogue: eCatalogue | Federal-Mogul Global Aftermarket Part No: Beru: GSE111 Mercedes: A6511530279 (A 651 153 02 79, 651 153 02 79) Can't find used part on sale online anywhere! 1. Is there a model that has superseded this part number? 2. What is the cheapest it can be had new? 3. Worth getting it reconditioned? 4. Worth ripping it open and trying DIY solder repair? 5. Any guidance on how to access the part? Is it DIY'able? Any feedback would be greatly appreciated. Thank you.