S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

Speedo, petrol gauge and rev counter..

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Old 11-20-2010, 12:15 PM
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Speedo, petrol gauge and rev counter..

I have a problem today where my instrument cluster is showing incorrect speedo, petrol gauge and rev counter levels.

The speedo started out at 90mph instead of 0mph, but after each start up/coming back to the car, it is now showing round 30mph instead of 0mph.

The rev counter was at 4,000 rpm+ but seems near if not normal.

The petrol gauge was at least another 50% above full, but is now around 95% full, but I know I actually around 50% petrol left.

The temp gauge was unaffected??

In the UK, it has got a little colder and I only use my car at weekends so I guess the issue could be cold/condensation etc, because the issue has got better throughout the day.

Does anyone have experience of this problem and confirm if my theory could be correct, as it does seems to be mending itself through the day.

I shall check in the morning on the status.

Cheers in advance
Old 11-23-2010, 04:04 AM
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All seems well now, the readings fell gradually over the evening and were all fine in the morning.

Have used the car for 2 days and reading normal.

Must have been some sort of condensation getting into the cluster etc. A good dose of heat with climate engaged helped....

Thanks

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