Hello experts, Im having problems with my gearbox. when the car is cold the gears move easy, but as the oil heats up gears are very hard to select.have changed oil, please help
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IMO it's more likely that you have the wrong grade of ATF. It's very important to have the correct grade. The following site shows this: http://www.nairaland.com/1364064/automatic-gearbox-problems
each car manufacturer has recommended grades of Automatic Transmission Fluid, BMW is no exception. the following website for BMWs may bring you more accurate data: http://www.nairaland.com/1364064/automatic-gearbox-problems
Apparently CTSC is the supplier for BMWs via the web.
Generally auto gearboxes have drain plugs and filler plugs to enable oil change in routine maintenance. But I would definately go back to the garage where you had the last service and ask politely about the grade of ATF used, before considering an 'oil change'.
Good Luck
You need to fill it with specified oil however you can try it with your current oil. If this not resolve you need to call the jaguar servicing for absolute solution.
The auto was notorious for clutch pack failure. Tolerances were tight in the inner workings and this caused inadequate oil flow and poor cooling. Sooner or later the auto transmissions fail. You could have the transmission rebuilt but that will cost a bit to do it so it wont break again. I might recomend going back to honda atf and changing the fluid again. If that does not work try an additive oil for the transmission. I had some sucess with the recomend product.
last resort, have it swapped to a manual transmission. This is a cheap alternative as f series transmissions from the accord can bolt up to the h22 and can be found cheap at the expense of higher gear ratios.
It will be best to get someone to check the hydraulics of the clutch. That is a common issue.
Get a workshop to drain the gearbox oil and flush the system. A tell tale may come from the drained oil if the tranny is near end of life.
You are asking what can be done to shift your manual tansmission easier ?
I would say if you are "grinding" gears, The clutch will A) have to be repaired, or B) a syncro has gone out in the trany.
Hi there. Although the Dealer has changed the oil, did they do a 'Stall Test' whilst the gearbox was cold and again when at normal running temperture? If not, that's what they must do firstly. This will identify whether you have a slipping clutch/s. The Honda autobox also includes what is known as accumulators - these control how each clutch is engaged during acceleration. For example, if you are accelerating slighly/smoothly, you want each gear to be engaged gently and smoothly, whereas, when accelerating hard, you need the gear engaged quickly and hard to aviod clutch slippage. Thus, the fact that you are experiencing a hard engagement might mean that an accumulator/s is seized. If that's the case, it will mean that the autobox will need stripping, cleaning and be checked for worn components. Hope this helps, Scottech.
if it is hard to shift when the vehicle is cold chances are that the oil in the gear box is too thick take it to a shop and try using a thinner oil than what is in the gear box and this will eradicae your problem
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