Computers - Engine Surges Down Hills

07.3-87101 Engine Surges when Coasting or Driving Engines 116.96, 10/87
Downhill 117.96, Model Year
1986/87

Remedy:

Install modified CIS-E control unit.
Engine 116.96, part no. 006 545 9432
117.96, part no. 006 545 96 32.