GJFenez

My 88 560 SEL would lose a charge about every 2 years. Did some research and bought a kit from RED TEK. It can be added to your old R12a system and be done at home. Environmentally freindly. Comes with hoses and everything. I installed it myself and put in a can of leak seal also. It cost me $80 cdn. I bought it at Parts Source here. My air is super coooool. Better that it has ever been. Keep in mind that my system just was cooling but not cold. I added one can and watched for bubbles in the sight glass and added the leak seal after. Still got one can left. Might want to give it a try if you are cooking in the Benz. www.redtek.com for more info