TEM | Safe Parking

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The TEM® (Trailer Emergency Module) automatically activates the parking brake for greater everyday safety when coupling and decoupling trailers.This avoids uncontrolled trailer movement and reduces the risk of damages to man and material.

Parking and release valve with integrated emergency brake valve as well as a pressure protection valve for auxiliary devices (e.g. air suspension) for two-line air brake equipment in towed vehicles. The TEM® has a flange-fitted release valve and a parking valve for the spring brake.

Safe Parking is a feature, effecting the spring brakes coming into action during uncoupling or pressure loss

Before moving off the spring brake actuators have to be released manually using the parking valve.

In particular, the TEM® satisfies the requirements of EEC Braking Systems Directive 71/320 and UN R13.


Function - Installation - Inspection - Maintenance - Technical data - Symbol




Shunt  Valve

Black knob

Park Valve

Red knob

Trailer coupled


Operation Conditions

Service Brake System

Park brake System

image307.png pulled pulled yes Parking (coupled) released engaged
image304.png pulled pushed (must be manually pushed) yes Drive released released
image307.png pulled automatic pulled out no Trailer uncoupled/braked released engaged
image306.png pushed pulled no Parking (uncoupled) released engaged
image305.png pushed pushed no Shunting released released

Warning - Danger!
Before starting the journey, the spring brake cylinder must be released manually using the parking valve.



  • The TEM should be attached to the vehicle chassis through its mounting flange, using two M8 screws and spacing washers, tightened to a maximum torque of 15 Nm (splah and spray water protected).
  • The maximum tightening torque for the threaded bushings is 34 Nm.
  • The 028 047 719 function plate must be attached to a visible area near the palm coupling.
  • Ensure that the operating equipment is easily accessible.
  • Ports that are not needed must be closed off.
  • When painting, the valve openings must be protected to prevent paint penetration.
  • Refer to the respective manufacturer’s instructions for the screwed / push-in fittings."


  1. System without pressure
    Shunt valve (black button) must be pushed in, parking valve (red button) automatically pushed out.
  2. Initial charging
    Apply pressure to port 1; the shunt valve (black button) must go into the operating position (pushed out). The parking valve (red button) remains pushed out.
  3. Automatic emergency braking
    Ensure that the black button is pulled out, and the red button is pushed in. Lower the pressure at port 1 to 0 bar. The air in the spring brakes (port 12/2) exhausts through port 3 automatically activating the emergency brakes (i.e. red button pushed out).
  4. Pressure protection valve
    Instructions for adjustment may be found in the installation instructions, order no.: 000 314 012.
  5. Parking brake valve (red button)
    Apply air pressure to port 1, shunt valve (black button) is automatically pushed out. Push in the parking valve (red button), at least 5.0 bar in the supply (brake) reservoir. Pull out the parking valve (red button), port 12/2 (spring brake system) must vent down to 0 bar, vehicle braked.


According to legal registrating country requirements or the statutory regulations of § 29 StVZO. If defects are discovered, either during examination of the vehicle or when travelling, the valve must be replaced.

The cage filter 029 000 409 in Port 1 must be replaced when soiled or damaged.

Technical data

Operating pressure pe = 10 bar
Operating temperature - 40°C - + 80°C
Medium Air
Weight approx. 1.2 - 1.6 kg
Pressure protection valve DIN 74279 - C 6-22
Opening pressure pe =  ca. 6.2 bar
Closing pressure pe =  min 5.2 bar
Port Description
1 Inlet port (Palm coupling RED, supply line)
1-2 Inlet/delivery port (reservoir)
12 Delivery port (spring brake actuator) / DCV EB+
2 Delivery port (spring brake actuator) / closed
3 Exhaust (spring brake actuator)
21 2x delivery port (Pressure Protection Valve, suspension)

For more technical information see TÜV Report No. KO258.0E in the documentation page


DIN 74253

352 075 001/101/201

352 075 011 352 075 031 352 075 051
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DIN ISO 1219