Technical illustration of the new Audi EA839 engine

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Technical illustration of the new Audi EA839 engine

Technical overview

Audi-A8D5

Engine code: CZSE

Compression ratio: 11.2:1

Emission standard: EU6

Main parameters

Cooling system connection diagram

Blue = Large coolant circulation circuit.

Red = small coolant circulation loop.

Orange = coolant circuit for charge air coolers.

Brown = heating circuit.

Green = transmission coolant circulation circuit.

1 – Coolant radiator

2 – Coolant temperature sensor at radiator outlet -G83-

3 – Coolant temperature sensor at engine outlet -G82-

4 – Engine oil radiator

5 – Coolant circulation pump -V50-

6 – cylinder head

q Cylinder bank 1 (right)

7 – Starter generator -C29-

8 – Cylinder block

9 – Front heat exchanger of the air heater

10 – rear heat exchanger of the air heater

q Equipment model

11 – Throttle valve

12 – Coolant Continuous Circulation Pump -V51-

13 – Engine Temperature Regulating Temperature Sensor -G694-

14 – Coolant shut-off valve – vacuum controlled, controlled by N545 (N489).

15 – ATF cooler

16 – Transmission Oil Cooling System Valve -N509-

17 – Capping – Check the overpressure valve

18 – coolant compensation tank

19 – cylinder block

20 – Throttle valve

21 – Cylinder Head Cylinder Bank 2 (left)

22 – Coolant Temperature Sensor -G62-

23 – Throttle valve

24 – exhaust gas turbocharger

25 – Thermostat for engine cooling controlled by characteristic line -F265-

26 – Coolant pump – controlled by mechanical coolant pump control valve – N649-

27 – Check valve

EA839 front view

A – 10-pin plug connection-T10v- black/10-pin plug connection-T10vx-, black

Used for cars with engine identification letters CZSA/CZSE

Installation location, engine marking car with CVXB letters: → location in the figure

1- Thermal switch for engine cooling controlled by characteristic curve-F265-

2-Block coolant valve -N545-(N489)

3-Oil Pressure Sensor -G10-

EA839 left view

1 -Hall sensor 4 -G301-

2 -Ignition coil with power output stage 4-N292-/spark plug 4-Q26-

3 -Cylinder 4 Injection valve -N33-

4 – ignition coil with power output stage 5-N323-/spark plug 5-Q27-

5 -Cylinder 5 Injection valve -N83-

6 -Ignition coil with power output stage 6 -N324- /spark plug 6 -Q28-

7 -Cylinder 6 Injection valve -N84-

8 -Hall sensor 2 -G163-

9 -Intake cam adjuster for cylinder 6 1 -F468-

10 -Knock sensor 2 -G66-

11 -Intake cam adjuster for cylinder 5 1 -F464-

12 -Air conditioning compressors and solenoid clutches and regulating valves -VX81-

13 -Oil pressure regulating valve -N428-

14 -Intake cam regulator for cylinder 4 1 -F460-

EA839 right view

1 – Fuel Valve -N290-

2 – Fuel Pressure Sensor -G247-

3 – Ignition coil with power output stage 3 -N291- /spark plug 3 -Q25-

4 – Cylinder 3 Injection valve -N32-

5 – Hall sensor 3 -G300-

6 – Ignition coil with power output stage 2 -N127- /spark plug 2 -Q24-

7 – Cylinder 2 Injection Valve -N31-

8 – Ignition coil with power output stage 1 -N70- / spark plug 1 -Q23-

9 – Cylinder 1 Injection valve -N30-

10 – Starter Generator -C29-

11 – Intake cam regulator for cylinder 1 1 -F448-

12 – Intake cam regulator for cylinder 2 1 -F452-

13 – Knock sensor 1 -G61-

14 – Starter -B-

15 – Coolant freewheeling pump -V51-

16 – Hall sensor -G40-

17 – Intake cam regulator for cylinder 3 1 -F456-

EA839 rear view

1 – Camshaft Control Valve 2 -N208-

2 – Exhaust camshaft control valve 2 -N319-

3 – Exhaust camshaft control valve 1 -N318-

4 – Camshaft control valve 1 -N205-

5 – Oil Level and Oil Temperature Sensor -G266-

6 – Engine speed sensor -G28-

EA839 top view 1

1 – Cylinder bed 1 Gliding air circulation valve -N625-

2 – Mechanical Coolant Pump On-Off Valve -N649-

3 – Boost pressure limiting solenoid valve -N75-

4 – Tank exhaust pressure sensor 1 -G950-

5 – Activated carbon tank solenoid valve 1 -N80-

6 – Low pressure fuel pressure sensor -G410-

7 – Oxygen sensor after exhaust catalytic purifier 1 -GX7-

8 – Oxygen sensor after particulate filter -GX39-

9 – Oxygen sensor after particulate filter 2 -G1040-

10 – Exhaust Gas Temperature Sensor 1 -G235-

11 – Exhaust Pressure Sensor 1 -G450-

12 – Oxygen sensor in front of exhaust catalytic purifier 1 -GX10-

13 – Bonnet Temperature Sensor -G765-

14 – Boost pressure sensor -G31-

15 – Throttle Control Unit -GX3-

16 – Inlet Converter Tube Pressure Sensor -G71-

EA839 top view 2

1 -Temperature sensor for engine thermostat -G694-

2 -Oil Pressure Switch -F22-

3 -Oil Temperature Sensor -G8-

4 – Coolant Temperature Sensor -G62-

5 -Coolant temperature sensor at engine output -G82-

Editor’s note

The Audi EA839 series engine is an improved and upgraded version of the Audi EA837 series engine.

The comprehensive performance is greatly improved compared with the previous generation engine, this article focuses on the view structure and you share the engine appearance original distribution and other technical point information, for peer reference only.

High quality auto radiator parts product recommendation: charge air cooler.