bmw Workshop Repair Guides

BMW Workshop Service and Repair Manuals

7 RA Checking Filler Cap Pressure Relief Valve > < 6 RA Checking Fuel Tank And Tank Ventilation System For Leaks|Page 830
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Using special tool 13 3 010 , disconnect supply line from special
tool 16 1 171  to tank filler neck.

Allow a rest period of approx. 20 secs.

Read off and note down starting pressure value, then wait 60
secs.

Read off final pressure value and compare with starting pressure
value.

Measurement evaluation:

Pressure drop between
0.008 and 0.010 bar.

Measure again.

Pressure drop in 60 secs.
greater than 0.010 bar.

System leaking beyond
permitted levels.
Carry out leak test.

RA  Checking fuel tank and tank ventilation system for leaks

BMW AG - TIS

11.02.2013  17:39

Issue status (12/2007) Valid only until next DVD is issued

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7 RA Checking Filler Cap Pressure Relief Valve > < 6 RA Checking Fuel Tank And Tank Ventilation System For Leaks|Page 830