Exhaust gas flaps Pierburg

This article draws on Pierburg PI 1649 service information

Exhaust gas flaps are an important element in modern engines for emission control and increased comfort. They direct the exhaust gas into diff erent exhaust tracts depending on the operating state. Stricter legal requirements governing the control of emissions, in particular, mean that exhaust gas flaps are increasingly being used close to the engine in series production:

Further possible uses:

Load profile:

Example: Optimising the acoustics

For this application, the sound waves must be superimposed in the exhaust tract so that they wipe each other out (noise reduction) or amplify each other. 
Retrofi t in Ferrari 360

Díl ve Ferrari 360

Example: Register turbocharging

With register turbocharging, one turbocharger is optimised for low to medium engine speeds, the second for medium to high engine speeds. The exhaust gas flap controls the exhaust gas supply to the relevant turbocharger. 
Register turbocharging (schematic)
Přepínání turbodmychadel (schéma)

Universal use exhaust gas flaps (pneumatic)

Pierburg no. Height Width Flap ⌀ Inner ⌀ Outer ⌀ Connection angle Tube
angle
Zero position Comment
  A B C D1 D2 R F (Unpressurised)  
7.00509.03.0 133,5   60   180° 90° Open Without actuator
7.00509.05.0     60 63.4 180° 90° Open  
7.03204.01.0 141.5 121.15 48 52.8 270° 90° Open With end tube, see Fig.
7.22469.06.0 149 1) 114.7 1) 47 2) 63° 90° Open 3)
7.22525.50.0 133.5 137.2 60 63.4 180° 90° Closed  
7.22825.03.0 159.8 167.5 71 71 76.1 180° -17° Open Thin-walled tube (3)
7.28153.16.0 128.9 124 52 55.6 56 153° 90° Open 3)

All data in mm:

  1. Dimensions in flap area 
  2. With end tube: Inlet side Ø 48.1
  3. Available for delivery until exhaustion of stock, please check availability

Dimensions
Rozměry

 

Exhaust gas flap 7.22469.06.0 withextended connecting tube
Výfuková klapka 7.22469.06.0 s prodlouženou koncovkou

A vacuum is required to operate a pneumatic exhaust gas flap (e.g. from the intake manifold or a vacuum pump). We recommend an electric switchover valve for the actuation (see fig. Exhaust gas flap 7.22469.06.0). 

Motorservice off ers a wide range of electric switchover valves, such as:
7.02318.01.0 - Connection: Junior Timer 2-pin or EV1 
7.28098.04.0 - Connection: RD clutch 

Electric switchover valve
Elektrický přepínací ventil

Vehicle-related exhaust gas flaps (electrical)

 

A
Exhaust gas flap with exhaust pipe (complete)

 

B
Separate exhaust gas flap as replacement, i.e. the old exhaust gas flap must be separated from the tube and the new exhaust gas flap welded on

 

C
Electric drive module of the exhaust gas flap as repair kit

Vehicles Ref. no.* Ref. no.* Pierburg. no. Ref. no.* Pierburg no.
Renault 14 72 506 83R 14 7B 074 24R 7.03571.16.0 14 72 532 72R
14 72 538 28R
14 7B 057 25R
7.03083.20.0
14 72 532 72R
14 72 582 71R
20 01 089 45R
Mercedes Benz A 176 490 06 81 - -
Nisan 20010-BB60A 147B0-8010WW -
20010-BB60B
20010-4EA3A
20010-4EA3B
VAG - 1K0 253 291 J 7.01300.24.0 - -
5Q0 253 101 AG 5Q0 253 691 F 7.03608.16.0 5Q0 253 692
5Q0 253 692A
7.07696.00.0
5Q0 253 101 AJ
5Q0 253 101 AN
5Q0 253 101 AD
5Q0 253 101 AC
5Q0 253 101 AF
5Q0 253 101 AG
5Q0 253 101 AH
5Q0 253 101 AM
3Q0 253 101 AS 3Q0 253 691 F 7.04709.13.0
3Q0 253 101 QX
3Q0 253 101 PX
3Q0 253 101 MX
3Q0 253 101 RX
4G0 254 400 GX
Mazda - S550-13J40 7.05662.07.0
Perkins - 3629021 7.04209.06.0 - -
- 2629023 7.04210.06.0 - -

* The reference numbers given are for comparison purposes only and must not be used on invoices to the consumer.

Universal use exhaust gas flap (electrical)

PIERBURG no. Height Width Flap Ø Outer Ø Tube angle Zero position Comment
  A B C D F (De-energised)  
7.04174.01.0 166.8 133.3 57.8 77.2 90° Open  

The electrical exhaust gas flap 7.04174.01.0 is infi nitely adjustable in the entire adjustment range between open and closed. A noncontact sensor provides feedback on the flap position.
Position control electronics are not part of the exhaust gas flap. A separate control unit (H-bridge DC engine) is required for application-specifi c actuation. In this case, please contact our Product Management team. 

Pierburg 7.04174.01.0
7.04174.01.0

 

Dimensions, plug assignment and wiring diagram
schéma - rozměry, rozvržení zdířek a diagram kabelů

  1. Sensor power supply (+5V)
  2. Sensor signal output
  3. Sensor earth
  4. Engine power supply DC-
  5. Engine power supply DC+

Exhaust gas flaps on the motor bicycle (externally electrically controlled)

The exhaust gas flap in the motor bicycle

Manufacturer Ref. no.*  Pierburg no.
BMW 18 12 7 718 415 7.01796.13.0 1)
18 12 7 710 883
18 12 8 521 881 7.01947.12.0 2)

1) Separate exhaust gas flap as replacement, i.e. the old exhaust gas flap must be separated from the tube and the new exhaust gas flap welded on.
2) Exhaust gas flap with exhaust pipe (complete)


 Pierburg 7.01796.13.0
7.01796.13.0

Pierburg 7.01947.12.0
7.01947.12.0