Mondial T Shock Warning light

We had that exact problem when we bought our Ferrari. The fix was simple, remove cover plate under carpet in passenger footwell and replace shot computer with new $1200 computer. You might get lucky simply by cycling the connector.

Dave

 

...and I have the same car as you, a 1990 "T".
My issue was leaking front shocks as well as a broken rear shock. After replacing the broken rear shock last year, the problem remained. I had the front shocks rebuilt this year, as well as one of the gears in a front actuator replaced and the computer automatically reset itself. No warning lights now!!
Just because the actuators are cycling does not mean a ring gear is not stripped. If it is broken the computer locks all shocks at the coarse medium setting but the firmest sub setting within medium.
If you read up on this Bilstein system, it is a pretty amazing system, especially for 1990 technology. There are 6 settings within each of the 3 main driver selectable settings. 18 settings in total. The automatic sub-settings are computer controlled, based on speed and lateral G forces.
This system was also used on the Corvette of the same period.
The F550 and F355 used a more advanced computer but simpler sub-selection system with fewer sub-steps. It was, however, basically the same overall design.

DavidJ

 

Thanks, I never knew this!! Are they stepped? In other words, is the stiffer setting in "soft" still softer than the softer setting in "medium"?

OP:
When you spoke to Lynn, was it confirmed that the plastic gear was still good? I think the shocks actuators can cycle, but if the plastic gear is stripped, you still get a fault light. Replacement gears are $35 and are metal if I recall correctly. Out of the earlier Corvette system.

Have you tried to simply turn off the battery for an hour or so and then turn back on? That helped reset mine a couple of times before I replaced a stripped gear.

Regards,
Jerry

 

The light was also on my car, it just came on while it was not driven ,which I had it park in the garage for almost a month but would start it once a week for battery charge up, as I took it out for drive the light gone, possible different issue than what have (refer to my post Mondial T 1992) if can help.
Michael

 

Are they stepped? In other words, is the stiffer setting in "soft" still softer than the softer setting in "medium"?

As far as I understand there are no overlaps. The settings go from Soft/soft to Hard/hard in 18 steps over the 3 tiers.

DavidJ

 

You didn't say but does the switch work, i.e. can you "feel" the different settings from soft to med to hard while driving the car. There should be a marked noticeable difference especially between soft and medium or hard. If the shocks adjust then there's something going on with that shock light. If the shocks don't adjust then the light is working correctly and something is not allowing things to work as they should. As stated above check under the passenger footwell carpet and try to disconnect and re-connect. Hopefully this will work and you will not need a new computer.

 

Yes, I replaced my switch with a new one from Ricambi - not cheap! (I take the view that a 3 position switch that remains relaible may be a chllenge too far for a Ferrari parts supplier) - works fine now

 

Absolutely agree that the difference in ride can be felt instantly as the switch is toggled.

It's a fabulous feature !!!

Cheers, Hank

 

IIRC, when the lights are lit, the shocks go into automatic HARD mode [or was if medium?] been a long time and sold the books with the car, but it's in there.

 

Right on Hank, that's one of the great features of the Mondi t's.

And SonomaRik, the shocks should default to the medium setting if not working properly. I said "should".

 

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