I was wanting to check if anyone knew of a DIY procedure on troubleshooting the A/C systems that pertain to the 240D? I looked in my old Haynes book and they don't cover anything...just take to like a dealer or M-B shop. I am interested in leak detection procedures, as well as, recharging. Procedure to possibly regress back to the old R-12 system. The do's and don't's so to speak. I didn't find anything under Pelican on it. Any response or help would be appreciated. TIA!

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Rebe