Ignition and engine management systems of car Audi Q7 (4L)
Specifications — Engine Electrical Systems
Specifications Cylinder firing order: 3.0 TDI models 1-4-3-6-2-5 4.2 TDI models 1-5-4-8-6-3-7-2 Installed batteries (depending on the engine and equipment):...
Specifications Cylinder firing order: 3.0 TDI models 1-4-3-6-2-5 4.2 TDI models 1-5-4-8-6-3-7-2 Installed batteries (depending on the engine and equipment):...
Basic information and safety precautions
Preheat system When a diesel engine is running, clean air is sucked into its cylinders and compressed to high pressure. In this case, the air temperature rises...
Preheat system When a diesel engine is running, clean air is sucked into its cylinders and compressed to high pressure. In this case, the air temperature rises...
Troubleshooting — General Information
Note: Refer also to the Troubleshooting section of the Introduction. 1. The fuel system is a component of the engine management system, so some of its...
Note: Refer also to the Troubleshooting section of the Introduction. 1. The fuel system is a component of the engine management system, so some of its...
Preliminary checks
1. If a malfunction occurs shortly after servicing a component, first of all, the component in question and any adjacent components should be thoroughly...
1. If a malfunction occurs shortly after servicing a component, first of all, the component in question and any adjacent components should be thoroughly...
Engine management system diagnostics
On-board diagnostic system (OBD) 1. The models described in this manual are equipped with the European On-Board Diagnostics (EOBD) system. 2. Reading OBD...
On-board diagnostic system (OBD) 1. The models described in this manual are equipped with the European On-Board Diagnostics (EOBD) system. 2. Reading OBD...
Removal and installation the ECM
3.0L TDI-CR models Note: After disabling the ECM, the adaptation values are erased, but the fault codes remain. 1. Before removing the ECM, read its...
3.0L TDI-CR models Note: After disabling the ECM, the adaptation values are erased, but the fault codes remain. 1. Before removing the ECM, read its...
Removal and installation glow plugs
3.0L models 1. Turn off the ignition and remove the upper engine cover ( see Section 19 of Chapter 1 ). 2. When working on cylinders No. 3 and No. 6 of...
3.0L models 1. Turn off the ignition and remove the upper engine cover ( see Section 19 of Chapter 1 ). 2. When working on cylinders No. 3 and No. 6 of...
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- General information
- Operating instructions
- Maintenance
- Power unit
- Diesels 3.0 l (BUG, BUN, CAS)
- Diesels 3.0 l (CATA, CCMA)
- Diesels 3.0 l (CJGA/CJGC)
- Diesels 4.2 l (BTR, CCFA/CCFC)
- Cooling system
- Fuel and exhaust system
- Engine management system
- Starting and charging
- Transmission
- Automatic gearbox
- Drive shafts
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- Front suspension
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- Steering system
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- Electrical circuits
- General information
- User manual
- Power unit
- Petrol engine 2.0 l
- Petrol engine 3.2 l
- Fuel system (petrol)
- Diesel 2.0 liter (CA)
- Diesel 2.0 liter (CG/CJ/CM)
- Diesel engine 3.0 l
- Fuel system (diesel)
- Transmission
- Manual gearbox 0B1
- Manual gearbox 0B2
- Automatic gearbox 0B5
- Automatic gearbox 0B6
- Chassis
- Front suspension
- Rear suspension
- Brake system
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