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Showing results 1 to 25 of 431
Search took 0.03 seconds. Search: Posts Made By: RRPhil
Forum: X5 (E53) Forum 05-01-2026, 07:18 PM
Replies: 11
Views: 690
Posted By RRPhil
As both the 4.4 and 4.6 bellhousings are machined...

As both the 4.4 and 4.6 bellhousings are machined from the same casting, if you’re unable to source a 4.6 bellhousing it may be possible to find a machine shop that would machine down the radial...
Forum: X5 (E53) Forum 05-01-2026, 12:16 PM
Replies: 11
Views: 690
Posted By RRPhil
Great to hear that your 4.4 transmission is still...

Great to hear that your 4.4 transmission is still performing fine in your 4.6

I think we probably identified the D-brake (used in 3rd & 5th gears) as the highest risk item (the 4.4 has 4 clutch...
Forum: X5 (E53) Forum 04-30-2026, 07:18 PM
Replies: 11
Views: 690
Posted By RRPhil
Yes, there was only one adapter shaft used for...

Yes, there was only one adapter shaft used for all the 5HP24 E53 transmissions (BMW p/n 24 20 1 423 756, ZF p/n 1058 314 025). The same part was fitted to both the 4.4i transmission (1058 000 029)...
Forum: X5 (E53) Forum 04-28-2026, 05:51 PM
Replies: 6
Views: 376
Posted By RRPhil
I’m well and truly retired now. I do the...

I’m well and truly retired now. I do the occasional Aston Martin 6HP26 transmission, and the odd 8HP70 rebuild, just for fun but I haven’t touched a 5-speed in ages.
:thumbup:
Phil
Forum: X5 (E53) Forum 04-25-2026, 02:37 PM
Replies: 6
Views: 376
Posted By RRPhil
When the Dexron III licences expired in 2006, GM...

When the Dexron III licences expired in 2006, GM moved users onto Dexron VI.

A potential issue, though, with using Dexron VI is that its viscosity (new) is lower than that of Dexron III. Not...
Forum: X5 (E53) Forum 03-17-2026, 08:36 PM
Replies: 16
Views: 1,020
Posted By RRPhil
You could test each of the four Hall sensors....

You could test each of the four Hall sensors. Failure of one or more of these is a common cause of the P0705 issue with the 6HP26/28.
...
Forum: X5 (E53) Forum 06-01-2025, 06:28 PM
Replies: 48
Views: 4,278
Posted By RRPhil
These images are from the link that I already...

These images are from the link that I already posted above :
...
Forum: X5 (E53) Forum 06-01-2025, 09:29 AM
Replies: 48
Views: 4,278
Posted By RRPhil
The inhibitor switch is dowelled into a fixed...

The inhibitor switch is dowelled into a fixed position on the casing. The cable is the only adjustment.
...
Forum: X5 (E53) Forum 05-14-2025, 07:22 PM
Replies: 21
Views: 2,542
Posted By RRPhil
Automatic transmission friction elements have 3...

Automatic transmission friction elements have 3 phases of engagement. The first, the pre-charge phase, is where the back of the empty clutch piston is filled by the hydraulics, pushing against the...
Forum: X5 (E53) Forum 05-14-2025, 11:02 AM
Replies: 21
Views: 2,542
Posted By RRPhil
I’m not familiar with ISTA, but is it capable of...

I’m not familiar with ISTA, but is it capable of monitoring and recording live values for solenoid currents, speeds, etc.? If so, what are the chances that you could capture your low engine speed 5th...
Forum: X5 (E53) Forum 05-02-2025, 06:57 AM
Replies: 9
Views: 1,176
Posted By RRPhil
Your 1068 020 018 transmission has the 1068 128...

Your 1068 020 018 transmission has the 1068 128 421 Mechatronic unit with the 052 intermediate sheet.
...
Forum: X5 (E53) Forum 08-30-2024, 05:56 AM
Replies: 28
Views: 3,661
Posted By RRPhil
Yes, your transmission will have the stiffened...

Yes, your transmission will have the stiffened A-clutch drum as it was manufactured after November 2000, and also the main pressure valve with the 10mm wide land. That’s not to say that these...
Forum: X5 (E53) Forum 08-28-2024, 11:34 AM
Replies: 28
Views: 3,661
Posted By RRPhil
Is there any way you can determine whether the...

Is there any way you can determine whether the forward gear that the transmission is failing safe into is 4th or 5th? This is significant because it tells us if the A-clutch is responsible. The...
Forum: X5 (E53) Forum 07-30-2024, 02:22 PM
Replies: 13
Views: 2,007
Posted By RRPhil
It may be worth performing the continuity check...

It may be worth performing the continuity check right back at the 40-pin transmission ECU connector as well, just to ensure that the wiring is sound all the way to the inhibitor switch. These are the...
Forum: X5 (E53) Forum 02-29-2024, 06:54 AM
Replies: 31
Views: 5,902
Posted By RRPhil
Is Fuse 1 okay in this fuse block? It powers the...

Is Fuse 1 okay in this fuse block? It powers the engine & transmission ECUs. (This is actually off a L322 Range Rover, but I assume the E53 is the same).
...
Forum: X5 (E53) Forum 02-24-2024, 01:48 PM
Replies: 8
Views: 1,980
Posted By RRPhil
If you do replace it, you want a YZ model...

If you do replace it, you want a YZ model (24007525323).

https://hosting.photobucket.com/images/ii29/GearShift2008/BMW_3.0i_petrol_X5_(USA)_nameplate.jpg?width=1920&height=1080&fit=bounds

If...
Forum: X5 (E53) Forum 02-24-2024, 06:39 AM
Replies: 8
Views: 1,980
Posted By RRPhil
A dodgy 4-5 shift could be down to an accumulator...

A dodgy 4-5 shift could be down to an accumulator issue (possibly a broken spring)
...
Forum: X5 (E53) Forum 01-23-2024, 03:25 PM
Replies: 7
Views: 2,910
Posted By RRPhil
The most common reason for a 5HP24 holding onto...

The most common reason for a 5HP24 holding onto the lower gears is that the fluid is overheating. This is because the controller inhibits upshifts to ensure that the engine revs (and therefore the...
Forum: X5 (E53) Forum 01-22-2024, 09:00 PM
Replies: 10
Views: 1,269
Posted By RRPhil
For genuine ZF parts from an official dealer I...

For genuine ZF parts from an official dealer I would use either JPAT (https://www.jpat.co.uk/) or Sussex Autos (https://www.sussexautos.com/)

Phil
Forum: X5 (E53) Forum 01-22-2024, 07:58 PM
Replies: 10
Views: 1,269
Posted By RRPhil
If it’s STA, then I know that they have a...

If it’s STA, then I know that they have a Hydra-Test machine to test out valve bodies/Mechatronic units and that this represents a substantial investment. I used this same equipment to test out my...
Forum: X5 (E53) Forum 01-22-2024, 11:58 AM
Replies: 10
Views: 1,269
Posted By RRPhil
Getting the transmission out of the vehicle &...

Getting the transmission out of the vehicle & back in again is definitely the hard part. Stripping & repairing the transmission is the easy bit (assuming, of course, that you have somewhere to lay...
Forum: X5 (E53) Forum 01-22-2024, 08:44 AM
Replies: 10
Views: 1,269
Posted By RRPhil
It may be worth removing the Mechatronic unit and...

It may be worth removing the Mechatronic unit and testing the E-clutch port with air pressure to see if the rear stator bush is worn. The E-clutch is used in 4th, 5th & 6th gears and the proportion...
Forum: X5 (E53) Forum 12-09-2023, 07:31 AM
Replies: 23
Views: 2,079
Posted By RRPhil
The only pressure tapping points that exist on...

The only pressure tapping points that exist on later models of the 5HP24 are for the B & E clutches and the torque converter.
...
Forum: X5 (E53) Forum 11-23-2023, 10:39 AM
Replies: 23
Views: 2,079
Posted By RRPhil
Would you consider carrying out the repair...

Would you consider carrying out the repair yourself? By far the worst aspect of the job is getting the transmission out and back into the vehicle afterwards. If you have access to a ramp, or know...
Forum: X5 (E53) Forum 11-16-2023, 07:16 AM
Replies: 23
Views: 2,079
Posted By RRPhil
The 6-speed boxes have a single-piece casing, but...

The 6-speed boxes have a single-piece casing, but the 5-speed is made up from four sections. The bellhousing, the oil pump housing, the main casing and the rear adaptor plate.
...
Showing results 1 to 25 of 431
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