Measurement of closed-circuit current, -as of MY 2002: Measurement
- Select a measuring range which ensures that the pointer of the instrument is in the upper third of the scale, as far as possible. Switch over measuring range without interruption. Read off the measuring values after the waiting period specified in the table.
- Do not switch on any electrical loads (opening the central locking system) during measurement.
NOTE:
- If the value of the closed-circuit current is higher than the value determined in the table, the cause must be established systematically.
- The recommended troubleshooting procedure: With the measuring device connected, pull off the fuses of terminal 30 and the relays successively. Observe the display values of the measuring instrument when removing in order to recognize a reduction in current.
- After troubleshooting, screw the ground strap back onto the body in the proper manner.
- The measured values could vary by approx. 20%.
- The values listed in the table depend on the condition of the battery, the room temperature, and the engine temperature.
Reading off the measuring range:
- Read off the measuring range only after 61 minutes have passed since the vehicle was locked.
CLOSED CIRCUIT CURRENT MEASURING RANGE (AS OF MY 2002)
| From | to | mA |
|---|---|---|
| 0 min | 5 min | up to approx. 950 |
| 6 min | 15 min | up to approx. 900 |
| 16 min | 20 min | up to approx. 750 |
| 21 min | 60 min | up to approx. 50 |
| 61 min | until the battery is empty | up to approx. 30 |
CONTROL MODULE AND CLOSED CIRCUIT CURRENT (AS OF MY 2002)
| Control module | Equipment | Closed-circuit current in mA | ||
|---|---|---|---|---|
| Generator | Standard | 0.5 | ||
| DME | Standard | 0.3 | ||
| Instrument cluster | Standard | 1.4 | ||
| Immobilizer/central locking | Standard | 13 | ||
| Installing passenger compartment monitoring/tilt sensor | M No. 534 | 6.6 | ||
| Power windows, front | Standard | 1.1 | ||
| Tiptronic(1) | M No. 249 | 0.4 | ||
| ABS | Standard | 0.1 | ||
| PSM | 0.1 | |||
| Radio | 1.0 | |||
| CD changer | M No. 692 | 0.8 | ||
| Amplifier, Audio | M No. 490 | 0.3 | ||
| Information system Navi | M No. 662 | 1.2 | ||
| Navi computer | 0.7 | |||
| PCM2 as of MY 03 | 2.8 | |||
| Telephone as of MY 03 | 0.2 | |||
| Seat memory, both | M No. 537 | 1.6 | ||
| Climatronic | M No. 573 | 0.03 | ||
| Standard production vehicle | total | Approx. 19 | ||
| Additional equipment | total | Approx. 12 | ||
| Maximum equipment | total | Approx. 31 | ||
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