TECH-INFO: Cylinder head cover valves, engine management
Discover the difference between valves in our practical TECH-INFO, Crankcase vents with and without diaphragm valve. The necessity of the motor code is also explained.
Problem
- Too much vacuum in the crankcase system prevents the right oil flow
Reasons for failure
- Using the wrong oil separator
Recommended by the experts
- Please check carefully which oil separator is needed
- Use VAICO Experts Kits +: cylinder head cover + oil separator, for detais see page 2
Did you know?
Cars with engine code BPY, BWA, BPY, BXIK have enough self pressure in the pressure room. For those cars it is absolutely necessary to use the oil separator without throttle valve (06F 129 101 P, V10-9751). Otherwise the pressure is additionally increased, which leads to too much vacuum and further issues to the breather system.
CHECK ENGINE CODE!
CDCC, CDLF, CDLG, CRZA, CDLA, CDLD
- NOT enough self-pressure
- additional throttle valve
with throttle valve
fbc | bcv v |
Audi | A4 08, 06-05, A4 Quattro 06-05 |
Motorcode | CDCC, CDLF, CDLG, CRZA, CDLA, CDLD |
X-Ref 06F 129 101 N* | V10-9732 |
BPY, BWA, BPJ, BYIK
- enough self-pressure
- NO additional throttle valve
without throttle valve
Audi | A3 08-06, A4 09, 07-06, A4 Quattro 09-06, TT 08 |
VW | Eos 09-07, GTI 08-06, Jetta 08-06, Passat 08-06 |
Motorcode | BPY, BWA, BPJ, BYIK |
X-Ref 06F 129 101 P* | V10-9751 |
Recommended by the experts
- Always pay attention to the exact engine code
- Clean all contact surfaces before assembly
- Check contact surfaces and damage
- Always use new or supplied seals
- Spray all connections with silicone (Note: do not clean or treat with an oily or acid agent)
- When installing, make sure that the valve and crankcase ventilation are not tightened
ALSO AVAILABLE AS EXPERT KITS+!
Recommended by the experts
- Please To avoid those problems, please always replace the cylinder head cover, the matched oil separator and hoses.
CDCC, CDLF, CDLG, CRZA, CDLA, CDLD
with throttle valve
fbc | bcv v |
Audi | A3, A4, A6 |
Seat | Altea, Leon |
VW | Golf V, Passat |
Motorart | Benzin |
X-Ref 06D 103 469 N kit* | V10-4149 |
BPY, BWA, BPJ, BYIK
without throttle valve
Audi | A3, A4, A6 v |
Seat | Leon, Altea |
VW | Golf V, Passat |
Motorart | Benzin |
06D 103 469 N kit2* | V10-4152 |
» To the products, valves, crankcase ventilation, in the online shop