Speed-sensitive power steering at vehicle speeds 0-100 km/h when steering, function - GF46.50-P-2600A
MODEL 171.4, 203, 209, 211 with CODE (213a) Speed-sensitive power steering
MODELS 215, 220, 230
Shown: rotary valve housing and control bush housing, models 215, 220 left wheel lock
Shown: rotary valve housing and control bush housing, models 215, 220 right wheel lock
As the vehicle speed increases, the energization of the SPS [PML] solenoid valve (Y10) decreases continuously; this is opened by the force of the integral push spring. The regulated pressure is transmitted via the control spool (9) to the reaction balls (4), which causes the pressure acting on the v-shaped surfaces of the rotary slide (12) to rise. The force on the torsion bar (10) is thus further increased and the driver must operate the steering wheel with a higher steering moment.
The constant constriction orifice (8) reduces the regulated pressure from the SPS solenoid valve (Y10). This is then passed on as an almost depressurized backflow to the power steering pump reservoir.
| Power steering pump, location / task / design / function | Type 171.4 | GF46.30-P-2100SK | |
| Model 203 | GF46.30-P-2100P | ||
| Model 209 | GF46.30-P-2100Q | ||
| Model 211 | GF46.30-P-2100T | ||
| Model 220 except Code (487a) Active Body Control (ABC) |
GF46.30-P-2100B | ||
| Model 230 except Code (487a) Active Body Control (ABC) |
GF46.30-P-2100R | ||
| Tandem pump, location/task/design/function | Model 215 Models 220, 230 with Code (487a) Active Body Control (ABC) |
GF46.30-P-3300A | |
| Rack-and-pinion steering gear, location / task / design / function | Model 171.4, 203, 209 | GF46.20-P-1000PA | |
| Model 211 | GF46.20-P-1000TA | ||
| Models 215, 220, 230 | GF46.20-P-1000B | ||
| SPS solenoid valve, location / task / design / function | GF46.50-P-5000B | ||
| Rack-and-pinion steering play compensator, location / task / function | Model 171.4, 203, 209 | GF46.20-P-1100P | |
| Model 211 | GF46.20-P-1100T | ||
| Models 215, 220, 230 | GF46.20-P-1100B | ||
| Rack-and-pinion steering damper, location / task / function | Model 171.4, 203, 209 | GF46.20-P-1200P | |
| Model 211 | GF46.20-P-1200T | ||
| Models 215, 220, 230 | GF46.20-P-1200B |