Range Rover L322 Instrument Cluster

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Londonfog

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Hello, new to forum. I purchased a 2004, 4.4 petrol rover a couple of months ago and there appears to be a problem with the fuel gauge. It reads quarter full but is empty. Looks like the entire cluster has to be purchased to replace. Are there any things I can check to test if it's the gauge or something else. Also, if I picked up one on eBay can the mileage be recalibrated to read my current mileage?
 
If it's anything easy like the Discovery 2 instrument cluster, you can take it apart and give the innards a gander for anything loose or maybe reposition the fuel needle (?).
 
Not sure how handy you are with things.

Taken from a manual I have.

“Fuel Level Gauge

The fuel gauge is an electrically driven, analogue instrument for displaying the fuel tank contents. The pointer needle is oil damped to prevent impacts on the vehicle wheels, causing deflection of the pointer needle. When the ignition is off, the pointer returns to the empty position.

The instrument pack is connected to two tank level sensors. One sensor is located in each side of the saddle type fuel tank and uses a float operated potentiometer for measuring the tank contents. Each tank level sensor is supplied with a current from the instrument pack. The returned current, via the potentiometer of the sensor, is read by one of the microprocessors. The reduced current from both sensors is evaluated and converted into a signal to position the fuel gauge needle at the appropriate level reading. When the microprocessor determines that fuel tank contents have reached a predetermined level, the low fuel level warning lamp is illuminated and a chime is emitted from the sounder to alert the driver of the low fuel condition.

The following table shows potentiometer resistance values in relation to fuel tank contents and the fuel gauge display. The figures are shown as a guide only because an infinite number of left/right sensor resistance values can be obtained.

Tank Sensor Potentiometer Resistance

Ω Left/Right

Gauge Needle Pointer Position

20 / 20. 0

146 / 121. 25% / 1/4

280 / 213. 50% / 1/2

396 / 323. 75% / 3/4

500 / 428. 100% / 1/1



Two versions of the fuel level gauge are used. Markets with a kilometres only speedometer use a percentage gauge reading marked 0 - 100%, with graduations of 0, 25, 50, 75 and max. Markets using miles and kilometres speedometer readouts use an imperial fraction reading marked 0 - 1, with graduations of 0, 1/4, 1/2, 3/4 and 1.”



I am also guessing you are in London?
If so and you don’t want to tackle yourself these guys maybe able to help. Ido t think changing is a “plug and play” option.

http://www.clusterrepairsuk.co.uk/repair/model/range-rover-vogue-l322-instrument-cluster-speedo

Good luck and keep plenty fuel in it till you get sorted:)

J
 
If it's anything easy like the Discovery 2 instrument cluster, you can take it apart and give the innards a gander for anything loose or maybe reposition the fuel needle (?).
Thanks guys. I thought about the sender unit. Seem a good place to start looking before shelling out on a cluster and find the same problem. Parts for these beasts are too expensive to misdiagnose the problem(s)
 
Also.....if the ignition is in position 1 or above and the battery is disconnected, the fuel gauge will read incorrectly......

A replacement cluster will need to be coded to your vehicle to ensure the mileage and vehicle information stored within it are correct.
 
If someone before you had the pixel display fixed and they pulled the needles off that will nacker it but stat with the sender.
Replacment of the fuel gauge on its own is possible
 
Thanks for replies. Think I will start at fuel sender and work forward. I have had a new battery installed but had the problem before battery replacement.
 
Not sure how handy you are with things.

Taken from a manual I have.

“Fuel Level Gauge

The fuel gauge is an electrically driven, analogue instrument for displaying the fuel tank contents. The pointer needle is oil damped to prevent impacts on the vehicle wheels, causing deflection of the pointer needle. When the ignition is off, the pointer returns to the empty position.

The instrument pack is connected to two tank level sensors. One sensor is located in each side of the saddle type fuel tank and uses a float operated potentiometer for measuring the tank contents. Each tank level sensor is supplied with a current from the instrument pack. The returned current, via the potentiometer of the sensor, is read by one of the microprocessors. The reduced current from both sensors is evaluated and converted into a signal to position the fuel gauge needle at the appropriate level reading. When the microprocessor determines that fuel tank contents have reached a predetermined level, the low fuel level warning lamp is illuminated and a chime is emitted from the sounder to alert the driver of the low fuel condition.

The following table shows potentiometer resistance values in relation to fuel tank contents and the fuel gauge display. The figures are shown as a guide only because an infinite number of left/right sensor resistance values can be obtained.

Tank Sensor Potentiometer Resistance

Ω Left/Right

Gauge Needle Pointer Position

20 / 20. 0

146 / 121. 25% / 1/4

280 / 213. 50% / 1/2

396 / 323. 75% / 3/4

500 / 428. 100% / 1/1



Two versions of the fuel level gauge are used. Markets with a kilometres only speedometer use a percentage gauge reading marked 0 - 100%, with graduations of 0, 25, 50, 75 and max. Markets using miles and kilometres speedometer readouts use an imperial fraction reading marked 0 - 1, with graduations of 0, 1/4, 1/2, 3/4 and 1.”



I am also guessing you are in London?
If so and you don’t want to tackle yourself these guys maybe able to help. Ido t think changing is a “plug and play” option.

http://www.clusterrepairsuk.co.uk/repair/model/range-rover-vogue-l322-instrument-cluster-speedo

Good luck and keep plenty fuel in it till you get sorted:)

J
Thanks for the info. I will not be tackling this one but have a mechanic that I'll be passing this on to.
 
There's also thi sin the manual:

CAUTION: Before disconnecting the
battery, ensure that the key is removed from
the ignition. Failure to remove the key will
result in the fuel gauge memorising its
needle position before disconnection and
reverting to it on re-connection of the
battery.

I wonder if that happened to yours.
 
Not sure but if this is the case I wonder how it can if at all be cleared and restored to normal operating position.
 
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