markocosic
New Member
- Joined
- Oct 10, 2015
- Messages
- 3
- Car
- E300TD
Hi folks,
1998 UK E300 TD
What is the boost threshold on these engines? When should they begin to build boost? What engine speed should the torque converter stall at?
I've picked up a car which behaves perfectly well at autobahn speeds (90 mph) but falls off-boost at 70 mph and is marginal at 80 mph. (indicated speeds, not actual)
The torque converter also stalls before the engine builds any boost, making pulling out of junctions glacial whether you two-foot launch the vehicle or not. (once rolling at 20 mph it'll take off like a fat child chasing cake)
Is this standard behaviour for this model?
I've previous experience of an BMW 525 TDS (E34) which had a similar issue with motorway gearing and the boost threshold (set for Germany not England), and a W211 E270 CDI whose throttle pedal was also connected to the engine by 2nd class post, but you could at least two-foot it out of a junction in busier traffic.
No boost leaks. Clicky switch at the end of the throttle pedal travel is being depressed and will cancel the speed limiter. Haven't checked anything more as of yet.
1998 UK E300 TD
What is the boost threshold on these engines? When should they begin to build boost? What engine speed should the torque converter stall at?
I've picked up a car which behaves perfectly well at autobahn speeds (90 mph) but falls off-boost at 70 mph and is marginal at 80 mph. (indicated speeds, not actual)
The torque converter also stalls before the engine builds any boost, making pulling out of junctions glacial whether you two-foot launch the vehicle or not. (once rolling at 20 mph it'll take off like a fat child chasing cake)
Is this standard behaviour for this model?
I've previous experience of an BMW 525 TDS (E34) which had a similar issue with motorway gearing and the boost threshold (set for Germany not England), and a W211 E270 CDI whose throttle pedal was also connected to the engine by 2nd class post, but you could at least two-foot it out of a junction in busier traffic.
No boost leaks. Clicky switch at the end of the throttle pedal travel is being depressed and will cancel the speed limiter. Haven't checked anything more as of yet.