Date registered: Dec 2005
Vehicle: W211 E320 Bluetec R129 SL500 - $1300 car ........ Ford F350 6l
Location: CA Bay Area
Mentioned: 9 Post(s)
Quoted: 1127 Post(s)
RE: S-Class S/W Mode?
There are different schools on using engine for braking. Most of manufacturers not advise it, taking liability off them if something goes bad. Another excuse is, that converter is not design to work in reverse.
That all proves to be lie in motorhome and smaller truck industry, where automatic transmissions are used for vehicle braking all the time. Sure the brake pads are cheaper, than converter replacement, but can you image how much energy takes to slow down 15-ton coach going down 16-mile 6% grade?
So, leaving in the mountains and driving lot of grades in California, I am using transmission for car braking all the time. Not necessary for saving the brake pads, but for smoother drive and comfort.