CAR Crankcase breather

Crankcase ventilation system: common defects and their signs

  1. Clogging of the oil separator or pipes.
    • Engine power lowers.
    • Fuel consumption increased.
    • The throttle flap is soiling fast.
    • Operation of the engine at idling worsens.
    • The air filter is oiled.
  2. Jamming of the crankcase gases recirculation valve.
    • Oil consumption increases.
    • Foreign noise appears in the intake manifold and valve area.
    • Vehicle dynamics worsens.
    • Engine smoking occurs.

How to repair or replace crankcase ventilation system?

Repair of the crankcase ventilation unit lies in replacement of defective elements, caused its inoperability. The actions sequence during components replacement depends on the system type, which can be open or close. Most of all, the crankcase ventilation system of the close type is installed on the cars; its construction is more complicated. In order to gain access to defective elements of the system you need to demount the electronic throttle valve and the idle air control valve. Sometimes demounting of the intake manifold may be required. Then, if the broken valve needs to be replaced, you need to disconnect the crankcase ventilation hose from it, demount the part and install a new one. If damages of the ventilation hose are present, its should be replaced also.

It is recommended to entrust replacement of the crankcase ventilation system elements to professionals of a service station in case of absence of special equipment and car servicing skills.

Crankcase breather Information

Crankcase breather: Bestsellers

-21%
FEBI BILSTEIN Hose, cylinder head cover breather
Article № : 45319
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£ 15,56**
£ 12,29
incl. 20% VAT, Shipping
  • Material: Plastic
  • Fitting Position: Cylinder Head, Upper
  • Weight [kg]: 0,04
  • Condition: New

OEM-Number

03 81 0 349 3AC

03 81 0 349 3AR

03 81 0 349 3M

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-21%
JP GROUP Seal, crankcase breather
Article № : 1112001300
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£ 1,84**
£ 1,45
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  • Inner diameter [mm]: 16,0
  • Condition: New

OEM-Number

02 81 0 350 0

06 91 0 350 0

In stock
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-21%
TOPRAN Hose, cylinder head cover breather
Article № : 108 737
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£ 14,86**
£ 11,74
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  • Material: Plastic
  • Supplementary Article/Info 2: with screws
  • Condition: New

OEM-Number

02 81 0 349 1J

02 81 0 349 1A

02 81 0 349 1G

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-21%
JP GROUP Hose, crankcase breather
Article № : 1111153300
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£ 3,78**
£ 2,99
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  • Equipment Variant: At crankcase
  • Condition: New

OEM-Number

06 A1 0 322 1C

06 A1 0 322 1BQ

In stock
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-21%
VAICO Hose, crankcase breather
Article № : V10-2522
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£ 12,63**
£ 9,98
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  • for OE number: 06A 103 213 F
  • Weight [kg]: 0,076
  • Supplementary Info: Original VAICO Quality
  • Condition: New

OEM-Number

06 A1 0 321 3F

6A 10 3 213 F

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-21%
ESEN SKV Oil Trap, crankcase breather
Article № : 31SKV006
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£ 33,20**
£ 26,23
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  • Fitting Position: Engine Side
  • Weight [kg]: 0,42
  • Operating Mode: Pressure Controlled
  • Condition: New
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-21%
VAICO Valve, engine block breather
Article № : V10-2270
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  • Operating Mode: Pressure Controlled
  • Valve type: Breather Valve, Diaphragm Valve
  • Weight [kg]: 0,569
  • Condition: New

OEM-Number

02 81 2 910 1D

02 81 2 910 1

In stock
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-21%
VAICO Hose, crankcase breather
Article № : V10-2523-1
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  • Weight [kg]: 0,04
  • Supplementary Info: Original VAICO Quality
  • Packaging width [cm]: 4,85
  • Condition: New

OEM-Number

06 A1 0 324 7

05 81 0 324 7

In stock
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