Autobox

Beagler · 06-04-2019, 05:16 AM

How reliable are they?

Jorix · 06-05-2019, 03:00 AM

Modern autoboxes are usually problem-free until around 200k kilometers (plus minus 50k, depending on driving style), so I guess there are too few F48s over that mileage for us to know. It is good, though. Smooth and quick (when in sport).

Beagler · 06-06-2019, 02:44 PM

In my youth as a motor tech I repaired Autoboxes fitted to Fords. I was on a Borg Warner 35 course at Fords and one test was to connect an oil pressure gauge to the main gallery and with the brakes fully applied and accelerator to the floor you then measured the oil pressure which should be around 150 psi. You were only allowed 30 secs to do this check as the heat generated was quite phenomenal. The instructor said this box has had this treatment for several months over the scheduled courses and was still performing perfectly.
He maintained they were stronger than any manual box.

06-04-2019, 05:16 AM	#1
Beagler First Lieutenant 75 Rep 383 Posts Drives: Sept 2019 Facelift X1 MSPORT Join Date: May 2019 Location: Lancashire iTrader: (0)	Autobox How reliable are they? __________________ Everthing goes to Entropy in this Age.
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06-05-2019, 03:00 AM	#2
Jorix Second Lieutenant 73 Rep 293 Posts Drives: BMW 120d, BMW X1 xDrive20d Join Date: Jan 2019 Location: Bulgaria iTrader: (0)	Modern autoboxes are usually problem-free until around 200k kilometers (plus minus 50k, depending on driving style), so I guess there are too few F48s over that mileage for us to know. It is good, though. Smooth and quick (when in sport).
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06-06-2019, 02:44 PM	#3
Beagler First Lieutenant 75 Rep 383 Posts Drives: Sept 2019 Facelift X1 MSPORT Join Date: May 2019 Location: Lancashire iTrader: (0)	In my youth as a motor tech I repaired Autoboxes fitted to Fords. I was on a Borg Warner 35 course at Fords and one test was to connect an oil pressure gauge to the main gallery and with the brakes fully applied and accelerator to the floor you then measured the oil pressure which should be around 150 psi. You were only allowed 30 secs to do this check as the heat generated was quite phenomenal. The instructor said this box has had this treatment for several months over the scheduled courses and was still performing perfectly. He maintained they were stronger than any manual box. __________________ Everthing goes to Entropy in this Age.
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