First of all, that is hilarious. 
I'm chuckling that the service tech, I guess, poured washer fluid into both? Or did he decide at the bewildering option that the reservoir labeled "Meth Only" was likely the better choice than the one with the universal symbol for wiper washer fluid?

Your signage on the reservoir cap is hilarious. You should type it out on a label maker or something, to make it look a little less...rudimentary.

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Quote from: IHeartGroceries on September 25, 2014, 08:59:02 AMYour signage on the reservoir cap is hilarious. You should type it out on a label maker or something, to make it look a little less...rudimentary.

You mean kind of like this iHeart? Any better than shoman's?

I labeled / marked my (Meth) reservoir a lllllllllong time ago for this very reason the OP encountered......

http://www.ebay.com/itm/Mercedes-R107-W123-W124-W126-Windshield-Washer-Reservoir-Cap-75-mm-O-D-/251650197991?pt=Motors_Car_Truck_Parts_Accessories&hash=item3a978549e7&vxp=mtr
^ This plus a decal.

Quote from: bpd1151 on September 25, 2014, 09:50:05 AM

Quote from: IHeartGroceries on September 25, 2014, 08:59:02 AMYour signage on the reservoir cap is hilarious. You should type it out on a label maker or something, to make it look a little less...rudimentary.

You mean kind of like this iHeart? Any better than shoman's?

I labeled / marked my (Meth) reservoir a lllllllllong time ago for this very reason the OP encountered......

Mike I labeled my cap 2days after I INSTALLED the kit, and year and a 1/2 later this happen. So the lock. Mike you cap (not label) does not look stock? What is it?