Beeping sound while shifting from 1st to 2nd Gear

I would venture a guess & say that you may be losing an F1 pump, in either pressure or volume. I believe the audible warning occurs when the system senses low pressure (nearly 600 lbs is normal). If your reporting a warning when shifting then I would assume that it was related to the shift system.

My 1st diagnosis would be checking F1 pump pressure (can be done with the Lenardo or SDX tool) & replacing the "wear item" F1 relay.

 

I asked some months back here about a beeping noise in my 430F1 as well but have not had the chance to follow up on a couple of the suggestions. One of those was to check on the battery, but my battery seems fine.

It isn't an overbearing beeping noise, to me maybe a bit too subtle to qualify as a warning beep one but is there nonetheless. I really only notice it in mine when the car is cold, and when moving off in 1st and maybe 2nd gear. Is it the same in yours?

 

Well... Then perhaps its an "overheat" warning.

If that is the case then its sensing slip at low engagement & low speed. Checking the PIS setting would be the tell-tale on that. I believe the range is from 4.5 to 5.5? Is the setting within that range?

 

The early 360 TCU had an overactive "overheat" warning buzzer. Adjusting the PIS may help with that but I am not sure if you have an early TCU which may not allow simple electronic PIS adjustment.

Adjusting your driving style may help as well. In the driver manual it actually asks the driver to drive off quickly to help reduce heat from the clutch unit. If the PIS adjustment does not remedy it then you may just want to drive more aggressively. Its worth a shot.

 

If it's a pre-2000 car then you will have the early tcu which has no provision for pis adjustment. Therefore,a pis auto-set has to be done. The car has to be COMPLETELY cold before doing this or it won't work properely. Although there is no direct pis adjustment available on this tcu, you can do alterations by adjusting the closed clutch position index which will recalculate the pis. However, if you have a later tcu there are other possibilities.

1. pis set too low. Easily viewable in the parameters using an sd2 or sd3. Anything lower than 4.1 will cause this issue. Simple adjustment.
2. Clutch closed position not set when clutch replaced. Simple re-adjustment.
3. Clutch drag. The most common cause of the issue you describe. If they look at the parameters they should see 0 rpm on the input speed shaft with the car running, stationary with the brake applied and 1st gear selected. Any reading above 0 rpm means either the pis is set too low(see item 1!) or the release bearing is sticking. If they had the 'box out to do your clutch they should have checked that there are no leaks from the seals, and that the later type (blue) seals were fitted. If they haven't wiped the errors when they fitted a new clutch there may also be a "clutch over pis" error logged, which is also indicative of drag. Unfortunately, drag from a sticking release bearing is a very common problem that can be quite hard to spot, and it's a 'box-out job to remmedy it.
4. Flywheel problem. Worn flywheels with high/low spots or a worn taper will cause clutch drag.