Thank you for choosing to have your car equipped with an advanced Prins LPG Dual-Fuel LD system. This system meets strict legal requirements regarding safety and the environment.
Before driving a Dual-Fuel system, we recommend that you carefully read this service page. It will familiarize you with the necessary information about your Prins system.
This service page explains how to operate your LPG system. It also points you to important addresses you can consult if you have any questions or problems.
We wish you many enjoyable driving experiences.
General tips for driving on LPG Dual-Fuel
1. Primary fuel: Diesel remains the engine's primary fuel source.
LPG is used as a supplement to diesel under specific engine load and speed conditions.
Prevent running dry: Always ensure there is sufficient diesel in the tank, as diesel is continuously consumed while driving.
2. Abnormal combustion:
If you hear unusual engine noises, immediately switch back to diesel by pressing the fuel selector switch.
If the engine runs and sounds fine in diesel mode, continue your journey in diesel mode and visit an authorized Prins dealer as soon as possible. If the unusual noise persists, even in diesel mode, turn off the engine and call roadside assistance.
3. If you smell gas in or around your car, switch to diesel immediately and have your car checked as soon as possible by the nearest LPG specialist.
4. To ensure a long life and trouble-free driving on LPG, follow the prescribed maintenance instructions. We recommend having a maintenance check performed every 25,000 km or every two years by an authorized Prins LPG installer. The items included in this maintenance check can be found in the table at the bottom of this page.
5. After installing your Prins system, you should receive a warranty certificate from your installer. This warranty certificate lists all vehicle and system details. Your warranty period begins on the date of installation.
6. Driving/parking LPG cars in underground garages is generally permitted. Only in some parking garages are restrictions imposed by the owner of the garage. The owner can enforce this through signage. The garage owner is free to include this in the house rules, which must then be adhered to.
AUTOGAS
Autogas or LPG (Liquefied Petroleum Gas), like gasoline and diesel, consists of hydrocarbon compounds. The main components of LPG are propane and butane. Both the extraction of oil and natural gas, and the refining of crude oil, release large quantities of petroleum gases. Compressing these petroleum gases liquefies them, creating LPG. LPG is a cleaner fuel compared to gasoline and diesel. Using LPG as a motor fuel therefore contributes to better air quality. LPG is an odorless gas with an added odorant, making any leaks easily detectable.
1. Fuel selector switch
The fuel selector switch is located on the dashboard or center console. The fuel selector switch controls the Dual-Fuel system.
2. AFC computer
The AFC computer is mounted in the engine compartment. This computer is the heart of the LPG system. The AFC processes all incoming signals and controls all actuators.
3. Fuse and diagnostic connector
The LPG system is separately fused and has a diagnostic connector for reading the system.
4. eVP-500 reducer
eVP-500 reducer
The electronically controlled eVP-500 reducer is mounted in the engine compartment. The eVP-500 ensures that the liquid gas from the tank is evaporated. It also regulates the pressure to a variable operating pressure.
Temperature sensor
The temperature sensor is located in the reducer and measures the coolant temperature in the reducer. This temperature is used, among other things, to determine the switch-on time.
Actuator + filter
This component has three different functions:
1) It electronically regulates the dynamic LPG pressure in the system.
2) It automatically shuts off the LPG supply when switching back to diesel operation, when the engine stops/stalls, and in the event of a malfunction.
3) Simultaneously, the LPG is filtered.
5. Filter unit
Filter unit
The filter unit is located between the evaporator and the injector rail. It filters the dry gas, protecting the injectors from contamination.
Combined pressure/temperature sensor
The combined pressure/temperature sensor is integrated into the filter unit. This sensor measures the pressure and temperature of the gas.
6. Injector rail
The injector rail is mounted as close as possible to the intake manifold. The injectors that inject the vaporous gas are located in the injector rail.
7. LPG tank
LPG Tank
The LPG tank can be installed in the cargo area or under the vehicle. The LPG tank stores the liquid LPG under pressure. The LPG tank is equipped with an accessory housing containing various safety accessories.
Tank Shut-Off Valve
A shut-off valve is mounted on the tank. When switching back to diesel operation, stopping/cutting off the engine, or experiencing a malfunction, the LPG supply is automatically shut off.
Tank Level Sensor
The tank level sensor is mounted in the LPG tank. The tank level sensor is an electrical sensor that registers the liquid level in the tank.
80% Filler Valve
The tank is equipped with a fill safety valve, which ensures that only 80% of the tank can be filled.
Pressure Relief Valve
The tank is equipped with a pressure relief valve (PRV) that opens if the tank pressure becomes too high.
8. Filler
The filler is mounted on the outside of the vehicle. It has a protective cap. This cap must be removed during refueling. The external filler has a non-return valve that prevents the LPG from flowing back after refueling.
