Leon Mk2: Engine, mixture preparation
Also for this vehicle: Leon Mk1.
Transmission
Steering & suspension
Body & interior
General
Engine
Heating & A/C
Diagnostics
Choose Sections to see everything in a chapter, or a chapter title to start at its first page.
Motronic Injection and Ignition System47 pages
Self diagnosis, V.A.G Inspection Service12 pages
Measured value blocks4 pages
Mixture preparation system, electronic inj.,Gas › Motronic injection and ignition system28 pages
- Fitting locations overview
- Servicing injection part
- Removing and installing control unit, Lambda probe, coolant temperature sender and engine speed sender
- Dismantling and assembling fuel manifold and intake manifold upper and lower parts
- Removing and installing throttle valve control part
- Removing and installing air cleaner, air mass meter and crankcase breather heater element
- Safety precautions
- Rules for cleanliness
- Technical data
- Idling check
- Performing basic setting
- Checking Lambda probe and Lambda control
- Checking Lambda probe heating
- Checking engine operating mode
- Checking air mass meter
- Checking throttle valve control part
- Checking coolant temperature sender
- Checking intake manifold temperature sender
- Checking engine speed sender
- Checking speed signal
- Checking control unit voltage supply
- Matching engine electronic control unit to electronic immobilizer
- Checking signal from air conditioner compressor
- Removing and installing injectors
- Checking injectors
- Checking fuel pressure regulator and holding pressure
- Checking intake air system for leaks (unmetered air)
Ignition system, glow plug system › Motronic injection and ignition system7 pages
Simos injection and ignition system47 pages
Self diagnosis, V.A.G Inspection Service › Self diagnosis10 pages
Mixture preparation system, electronic inj.,Gas › Simos injection and ignition system27 pages
- Fitting locations overview
- Servicing injection part
- Dismantling and assembling intake manifold - upper part
- Dismantling and assembling intake manifold - Lower part
- Dismantling and assembling air cleaner
- Safety precautions
- Rules for cleanliness
- Technical data
- Idling check
- Performing basic setting
- Checking Lambda probe and Lambda control
- Checking Lambda probe heating
- Checking engine operating mode
- Checking air mass meter
- Checking throttle valve control part
- Checking coolant temperature sender
- Checking intake air temperature sender
- Checking engine speed sender
- Checking speed signal
- Checking control unit voltage supply
- Matching engine electronic control unit to electronic immobilizer
- Checking signal from air conditioner compressor
- Checking starter signal
- Checking injectors
- Checking fuel pressure regulator and holding pressure
- Checking intake air system for leaks (unmetered air)
Ignition system, glow plug system › Simos injection and ignition system10 pages
Diesel direct injection and glow plug system48 pages
Self diagnosis, V.A.G Inspection Service › Self-diagnosis11 pages
- Features of self-diagnosis
- Technical data of self-diagnosis
- Connecting fault reader V.A.G 1551 and selecting engine control unit
- Interrogating fault memory
- Fault table
- Erasing fault memory
- Final control diagnosis
- Reading measured value block
- Evaluating measured value blocks, engine codes AHU, 1Z
- Evaluating measured value blocks, engine codes AFN, AVG
Fuel preparation system Diesel injection35 pages
Servicing diesel direct injection system31 pages
- Safety precautions
- Rules for cleanliness
- Fitting locations overview
- Servicing injection pump
- Servicing fuel filter
- Servicing accelerator linkage
- Checking sender adjustment
- Removing and installing injection pump
- Dynamically checking and adjusting commencement of injection
- Checking valve timing
- Removing and installing injectors
- Servicing injectors
- Renewing injection timing device cover O-ring
- Checking engine speed sender
- Checking intake manifold pressure sender
- Checking coolant temperature sender
- Checking brake light switch and brake pedal switch
- Checking clutch pedal switch
- Checking intake manifold temperature sender
- Checking Diesel direct injection system voltage supply
- Checking fuel temperature sender
- Checking modulating piston movement sender and quantity adjuster
- Checking needle lift sender
- Checking injection timing control range
- Checking charge pressure control
- Hose connection diagram for charge pressure control, engine codes AFN, AVG
- Checking exhaust gas recirculation and air mass meter function
- Checking speedometer sender
- Checking accelerator position sender
- Checking gearbox intervention signal when selecting gear
Replacing, coding and matching engine control unit4 pages
Motronic injection and ignition system (4-Cyl.)62 pages
Self diagnosis, V.A.G Inspection Service15 pages
Mixture preparation system, electronic inj.,Gas39 pages
Checking components11 pages
- Checking Lambda probe heating
- Checking air mass meter
- Checking throttle valve control part
- Checking coolant temperature sender
- Checking intake air temperature sender
- Checking engine speed sender
- Testing altitude sender
- Checking injectors
- Checking fuel pressure regulator and holding pressure
- Checking intake air system for leaks (unmetered air)
Engine control unit8 pages
Ignition system, glow plug system › Servicing ignition system8 pages
Motronic injection and ignition system (0.2 l engine)72 pages
Self diagnosis, V.A.G Inspection Service25 pages
- Fault table: SAE P0 and P2 codes
- Fault table: SAE P1 and P3 codes
- Evaluating measured value blocks, display groups 0...9 -Basic functions-
- Evaluating measured value blocks, display groups 10...29 -Ignition-
- Evaluating measured value blocks, display groups 30...49, 99 -Lambda regulation-
- Evaluating measured value blocks, display groups 50...69 -Speed regulation-
- Evaluating measured value blocks, display groups 70...89 -Reducing emissions-
- Evaluating measured value blocks, display groups 120...129 -Communication-
Mixture preparation system, electronic inj.,Gas38 pages
Checking components11 pages
- Checking Lambda probe heating for Lambda probe before catalyst
- Checking Lambda probe heating for Lambda probe after catalyst
- Checking air mass meter
- Checking throttle valve control part
- Checking coolant temperature sender
- Checking intake air temperature sender
- Checking engine speed sender
- Checking injectors
- Checking fuel pressure regulator and holding pressure
- Checking intake air system for leaks (unmetered air)
Ignition system, glow plug system › Servicing ignition system9 pages
Motronic injection and ignition system (1.8 l engine)75 pages
Self diagnosis, V.A.G Inspection Service26 pages
- Fault table: SAE P0 codes
- Fault table: SAE P1 codes
- Evaluating measured value blocks, display groups 0...9 -Basic functions-
- Evaluating measured value blocks, display groups 10...29 -Ignition-
- Evaluating measured value blocks, display groups 30...49, 99, 107 -Lambda regulation-
- Evaluating measured value blocks, display groups 50...69 -Speed regulation-
- Evaluating measured value blocks, display groups 70...79 -Reducing emissions-
- Evaluating measured value blocks, display groups 110...119 -Charge pressure control-
- Evaluating measured value blocks, display groups 120...129 -Communication-
Mixture preparation system, electronic inj.,Gas40 pages
Checking components11 pages
- Checking Lambda probe heating for Lambda probe before catalyst
- Checking Lambda probe heating for Lambda probe after catalyst
- Checking air mass meter
- Checking throttle valve control part
- Checking coolant temperature sender
- Checking intake air temperature sender
- Checking engine speed sender
- Checking injectors
- Checking fuel pressure regulator and holding pressure
- Checking intake air system for leaks (unmetered air)
Checking functions7 pages
Ignition system, glow plug system › Servicing ignition system9 pages
Motronic injection and ignition system (6-cylinder engine)77 pages
Self diagnosis, V.A.G Inspection Service24 pages
- Fault table: from V.A.G code 16396 / SAE P0 and P2 codes
- Fault table: from V.A.G code 17510 / SAE P1 and P3 codes
- Evaluating measured value blocks, display groups 0...6 -basic functions-
- Evaluating measured value blocks, display groups 10...29 -Ignition-
- Evaluating measured value blocks, display grps. 30...33, 99 -Lambda regulation-
- Evaluating measured value blocks, display groups 50...69 -Speed regulation-
- Evaluating measured block values, display groups 90...95 -Performance improvement-
- Evaluating measured value block, display group 125 -Communication-
Mixture preparation system, electronic inj.,Gas44 pages
Servicing injection system10 pages
- Fitting locations overview
- General notes on injection
- Removing and installing parts of the injection system
- Dismantling and assembling intake manifold
- Dismantling and assembling fuel rail
- Dismantling and assembling air cleaner
- Dismantling and assembling intake manifold
- Safety precautions
- Rules for cleanliness
- Technical data
Checking components12 pages
- Checking Lambda probe heating for Lambda probe before catalyst
- Checking Lambda probe heating for Lambda probe after catalyst
- Checking air mass meter
- Checking throttle valve control part
- Checking coolant temperature sender
- Checking intake air temperature sender
- Checking engine speed sender
- Checking injectors
- Checking fuel pressure regulator and holding pressure
- Checking intake manifold change-over
- Checking intake air system for leaks (unmetered air)
Checking functions8 pages
- Idling check
- Adapting idling speed
- Checking Lambda probe and Lambda regulation before catalyst
- Checking Lambda probe and Lambda regulation after catalyst
- Checking Lambda probe ageing of Lambda probe before catalyst
- Checking Lambda probe ageing Lambda probe after catalyst (adaption)
- Checking engine operating mode
Ignition system, glow plug system › Servicing ignition system9 pages