Hello. My mechanic (owner of 94 s420) knows everything about Benzes and BMWs. He did a lot of different jobs on 3 of my MBs and I was very pleased with his knowledge and work. But when I brought new timing chain to replace old making noise chain in my 92 500sel, he said he will not roll it in. He will need to open timing chain cover and change chain as 1 peice. I changed few giude rails and others(inner) look good. Chain makes noise like its a bearing noise. Very annoying. My mechanic said that if I'll roll chain in attached to old one, new chain will most likely break. Thats the reason he will not do it. Any thoughts on this situation? He is very reasonable price wise but I heard that poeple change chains even themselfs. I am DIYer but its cold out and really want to change it. Any advice? Thank you

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1999 ML430 Silver 135k ml
Smoked LED taillights, Alpine in-dash DVD player, 12" sub, Pioneer components, 2 amps, 4200k HIDs, ML55 headlights, 20" rims, mirror LED blinkers

SOLD. 1996 E320 145k ml. Burgundy

SOLD but miss it everyday 1992 500sel Black
Chime buzzer mod,Alpine CD/MP3 player with stock amp,Euro headlights,S600 grill,20" rims, BEST CAR EVER!

SOLD. 1990 300E White
187k ml,smoked tails,Euro headlights,17rims,Intake,12" sub in first aid kit,alarm/autostart,buzzer mod