I have a 1990 Mercedes 500SL with 45,000 miles. The cruise control has started to act erratic. Once the cruise is set, it will just disengage itself. If I use the cruise control lever to accelerate, it will start to accelerate then just loose power. Sometimes, the cruise won't set at all.
What do you think the problem is? I would like to have an idea what's going on before I take it to the shop.
Thanks in advance, Mark156
2010 Land Rover LR4, 2013 Honda CR-V, 2009 Bentley GTC, 1990 MB 500SL, 2001 MB S500, 2007 Lincoln TC, 1964 RR Silver Cloud III, 1995 MB E320 Cab., 2015 Prevost Liberty Coach