I have been using the MPG readout severl times a year on my 1998 RR 4.0 I teated it yesterday doing a steady 50 mph on a straightaway. At 108,331 miles on the speedo. the engine does not burn any oil. I get 22.9 MPG. At 55 mpg I get 20 mpg and at 60 mph I get 19 mpg on the readout. How much of...

Finally got the RSW software; readout is line by line as follows - _______ Description Front left height sensor mechansim Air spring air supply fault, Air spring Air spring airsupply fault, compressor _______ what does this mean... air sensor, or the whole shebang...

Hi all...i have looked for these and have reset the service light but not the mileage readout...please can someone show me link to this or give me some direction. And...i would like to try and fix my slow blowing fan...its intermittent but always comes on low speed and the steering wheel makes...

(2005 RR) My main question: does anyone here have a list with air suspension error codes? I bough the iCarsoft tool, which really is great: diagnostics and reset for all systems without laptop, but the only functionality it's missing is giving a description of the air suspension codes. (it can...

At 30mph my Speedo is showing 25, it's the same for all speeds above this showing 5mph under my actual speed. Is there a quick fix or is the problem more technical?

So my P38 has been revving high this last while and i got the chance today to pop in to Auto-zone and hook it up to an OBD II reader (as i haven't yet invested in one myself). It pulled up the following 5 codes: P0734 Gear 4 incorrect ratio P0174 Bank 2 system too lean P0171 Bank 1 system too...

Is there a way to show the speed in a digital format in the area between the two gages. For a car of this price, it cant just have an anolog speedometer.

The external temperature readout of the main instrument cluster (the TFT screen) on my 2012 RRS SC always seems to be +/- 10 degrees off on any given day (doesn't matter if set to Fahrenheit or Celsius)...anybody else notice this/have this problem? Anyone know if there is a good way to...

I got a dash read out some time ago and it said " ignition overheat " Any know what this means?? Haven't seen it since....Thanks so much