what is this part number?

[1999C4CO]

996 641 982 46 70C

All I am looking for a white face cluster for my 99 c4 996 and found one with this model number. Can anyone tell me if this is the correct part number for the c4 as I am to understand that there is a difference between c2 and c4 clusters. Thanks in advance

[Loren]

Yes, that is a C4 cluster for your model year.

[AG996LV]

Pardon my ignorance, but why do they have different gauges for a c2 vs c4?

[Loren]

Pardon my ignorance, but why do they have different gauges for a c2 vs c4?

As far as I know it is because of the different fuel tank design in the C4 and it's sending unit/electronics. In the C4, the shape and configuration of the fuel tank (saddle-bag) prevent the fuel level sensing system from being able to physically read down to a level of 10 liters. Therefore, when the driving-distance-on-remaining-fuel calculation begins when the fuel reaches a level of about 19 liters (approx. 1/4 tank).

As fuel is further consumed below 19 liters, the amount of fuel remaining in the tank is a calculated value. The calculated value is derived from the fuel consumption signal, and continues until the fuel tank is empty (unless the fuel tank is refilled).

Whenever the fuel level is less than 19 liters and the ignition is switched off, the fuel-level and driving-distance- on-remaining-fuel values are stored in instrument cluster memory. If battery power is interrupted, these stored values are lost (erased from instrument cluster memory). Once lost, these values will not be automatically recalculated unless the fuel tank is filled with at least 19 liters (crossing the calculation-switchover threshold).