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Search: Posts Made By: RRPhil
Forum: X5 (E53) Forum 07-13-2019, 01:23 PM
Replies: 7
Views: 291
Posted By RRPhil
2003 was the year the powertrain changed from the...

2003 was the year the powertrain changed from the M62 engine with the ZF 5HP24 transmission to the N62 engine with the ZF 6HP26 transmission. Which do you have?

Phil
Forum: X5 (E53) Forum 07-06-2019, 07:43 PM
Replies: 20
Views: 845
Posted By RRPhil
Clearly the biggest difference between the 740i...

Clearly the biggest difference between the 740i and the E53 versions of the 5HP24 is the fact that the former is RWD and the latter 4WD. This is achieved by replacing the back end of the RWD variant...
Forum: X5 (E53) Forum 07-06-2019, 01:08 PM
Replies: 11
Views: 484
Posted By RRPhil
I doubt youíd be able to see what was going on...

I doubt youíd be able to see what was going on using the tiny built-in screen on the scanner. Diagnostic tools sometimes allow you to export the recorded data as a .csv file (or similar) so that you...
Forum: X5 (E53) Forum 07-06-2019, 08:36 AM
Replies: 11
Views: 484
Posted By RRPhil
Solenoid issues with the 5HP24 are certainly much...

Solenoid issues with the 5HP24 are certainly much rarer than with the 6HP26, but they arenít unheard of. The torque converter lock-up clutch hydraulic circuit is quite simple, with only two valves...
Forum: X5 (E53) Forum 07-05-2019, 04:07 AM
Replies: 11
Views: 484
Posted By RRPhil
Certainly, the solenoid would be an easy thing to...

Certainly, the solenoid would be an easy thing to check by substitution. I would just swap it with one of its neighbours with a black cap (labelled A or B or C in the photo) and see if the problem...
Forum: X5 (E53) Forum 07-04-2019, 06:52 PM
Replies: 11
Views: 484
Posted By RRPhil
Is your transmission a 5-speed (ZF 5HP24) or a...

Is your transmission a 5-speed (ZF 5HP24) or a 6-speed (ZF 6HP26)?

Phil
Forum: X5 (E53) Forum 06-25-2019, 01:01 PM
Replies: 6
Views: 277
Posted By RRPhil
If all the proportional solenoids are functioning...

If all the proportional solenoids are functioning correctly on your Mechatronic unit then resetting the adaptions is unlikely to cause an issue.

However, one of the most common problems with the...
Forum: X5 (E53) Forum 06-09-2019, 02:56 PM
Replies: 8
Views: 432
Posted By RRPhil
Iím not sure what youíre referring to with the...

Iím not sure what youíre referring to with the Ďlocking piní as the faulty component described in the SIB is the guide plate (which hadnít been hardened properly).

The correctly hardened component...
Forum: X5 (E53) Forum 05-29-2019, 04:20 AM
Replies: 28
Views: 1,207
Posted By RRPhil
Iím curious which Ďkití youíre referring to. Iím...

Iím curious which Ďkití youíre referring to. Iím not aware that Sonnax do a kit for the 5HP24. Do you mean the ZF 5HP24VBK valve body kit?
...
Forum: X5 (E53) Forum 05-11-2019, 07:19 PM
Replies: 28
Views: 1,207
Posted By RRPhil
It worries me that you would be speculatively...

It worries me that you would be speculatively chucking that much money at it, just hoping that the valve body is the issue. If at all possible, youíd be better getting the valve body tested first as...
Forum: X5 (E53) Forum 05-09-2019, 06:42 PM
Replies: 28
Views: 1,207
Posted By RRPhil
The symptoms are certainly similar. However,...

The symptoms are certainly similar. However, transmissions which left the production line at Saarbrucken after the middle of November 2000 were fitted with the stiffened A-clutch drum. The 10mm land...
Forum: X5 (E53) Forum 05-07-2019, 06:31 PM
Replies: 28
Views: 1,207
Posted By RRPhil
I canít see any crack in the upper valve block in...

I canít see any crack in the upper valve block in your photos. I would expect it to be more obvious if that was the cause.

Clearly, it would be best for you to replace the complete valve body...
Forum: X5 (E53) Forum 05-07-2019, 05:24 AM
Replies: 28
Views: 1,207
Posted By RRPhil
Unfortunately, itís not possible to determine...

Unfortunately, itís not possible to determine pressures with a diagnostic tool because there are no pressure transducers in the transmission. All you can measure is the current driving the solenoids,...
Forum: X5 (E53) Forum 03-22-2019, 07:10 PM
Replies: 7
Views: 502
Posted By RRPhil
Itís very difficult to overfill a 5HP24. Did you...

Itís very difficult to overfill a 5HP24. Did you definitely have the engine running while the level was being checked?

If you find red fluid in a 5HP24 youíve got a big problem. New ZF Lifeguard...
Forum: X5 (E53) Forum 03-09-2019, 03:35 PM
Replies: 7
Views: 502
Posted By RRPhil
Your 4.6is is fitted with the ZF 5HP24...

Your 4.6is is fitted with the ZF 5HP24 transmission. 1st gear uses a sprag rather than a clutch for engagement when in Ďautomaticí mode, so a 2-1 rollout shift should feel completely seamless as the...
Forum: X5 (E53) Forum 02-09-2019, 11:10 AM
Replies: 2
Views: 259
Posted By RRPhil
Mechanically the transmission and torque...

Mechanically the transmission and torque converter are identical for Europe and the USA. The transmission ECUs may be different as calibrations may change between territories. Your transmission uses...
Forum: X5 (E53) Forum 01-24-2019, 05:58 PM
Replies: 24
Views: 3,987
Posted By RRPhil
In case itís helpful, ZF produced a total of...

In case itís helpful, ZF produced a total of 10,824 5HP24 transmissions especially for the E53 4.6iS (i.e. transmission model number 1058 000 034). The units produced after August 2003 would have...
Forum: X5 (E53) Forum 01-16-2019, 04:36 PM
Replies: 60
Views: 3,672
Posted By RRPhil
Without doubt, the single biggest problem with...

Without doubt, the single biggest problem with the 6HP26 is faulty solenoids. These cause the vast majority of issues with this transmission. The other main issues are:


Transmission refuses to...
Forum: X5 (E53) Forum 01-16-2019, 05:55 AM
Replies: 60
Views: 3,672
Posted By RRPhil
I see 5HP24s at that mileage quite frequently and...

I see 5HP24s at that mileage quite frequently and theyíre in excellent condition (but others are completely Ďworn outí at much lower mileages). When I check the thickness of the friction plates at...
Forum: X5 (E53) Forum 01-03-2019, 02:01 PM
Replies: 60
Views: 3,672
Posted By RRPhil
Issues with the fluid temperature sensor (which...

Issues with the fluid temperature sensor (which is taped into the wiring loom) are not unusual but (in my opinion) would be unlikely to produce the errors reported by your ECU
...
Forum: X5 (E53) Forum 01-02-2019, 04:46 AM
Replies: 60
Views: 3,672
Posted By RRPhil
Only ever use either ZF Lifeguard Fluid 5,...

Only ever use either ZF Lifeguard Fluid 5, Pentosin ATF 1 or Mobil ATF LT71141 in your 5HP24. This guarantees that you have the right friction modifier pack to ensure that the torque converter...
Forum: X5 (E53) Forum 01-01-2019, 09:04 PM
Replies: 60
Views: 3,672
Posted By RRPhil
If the mileage is high it may be worth getting a...

If the mileage is high it may be worth getting a Sonnax main pressure valve fitted. Worth doing a vacuum test first, but I find that I need to replace quite a few.
...
Forum: X5 (E53) Forum 12-28-2018, 10:06 AM
Replies: 60
Views: 3,672
Posted By RRPhil
Important to remember that the 4.6is model also...

Important to remember that the 4.6is model also has an additional friction & steel plate in the D brake to handle the extra torque. You canít just swap the bellhousing/torque converter and the upper...
Forum: X5 (E53) Forum 10-19-2018, 05:33 PM
Replies: 14
Views: 700
Posted By RRPhil
Overhauling a 5HP24 is easy. Getting the thing...

Overhauling a 5HP24 is easy. Getting the thing out of the car and reinstalling it is, by far, the hardest bit.

http://www.jagrepair.com/images/AutoRepairPhotos/ZF%205HP24%201%20Repair%20Manual.pdf...
Forum: X5 (E53) Forum 10-07-2018, 02:50 PM
Replies: 17
Views: 812
Posted By RRPhil
Hereís a heavy throttle acceleration run for the...

Hereís a heavy throttle acceleration run for the 6HP26 in a Range Rover and you can see that the converter is open in 1st gear, operates in controlled slip mode in 2nd gear, and then is locked solid...
Showing results 1 to 25 of 347

 
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