It's nice to see you at your Best doing what you like doing, keep it up, Gary

wonderful video,thanks from Malaysia

As always very informative. Thank you for the videos please keep them coming!

thank you so much for your videos for repairng zf automatic gearbox you help me very much to learn to overhaul them i am from europe you are very master about this zf transmissons thank again sir for your education videos to help people something to learn

As always another good video, thank you Gary.

Great video, explained everything so clearly thank you!

Thank you for the video, I've been looking for a long time good luck to you

Thank you for sharing experience 👍👍

Great man, good job. I always watch your videos. Greetings fron Brazil.

Great job👍

Very informative. Please do more videos

Hi Gary,greetings from Australia.Good to see experienced people like yourself at work.

Hi from dubai. Thanks for great information videos

Hi Gary, follow up to let you know my mechanic replaced all new solenoids with a kit. Original 420012 solenoid short to positive and the code didn’t clear. Still won’t go into drive. The D on the gear shifter flashes. Engine light comes on. Drive Train Malfunction on dash.

First of all, awesome video Sr. I have a 2016 audi A6 3.0t with the zf8hp55 i believe is a pretty similar to this one. i have had a pretty rought downshift from 3-2 since i bought the car with 20k, with a ocasional clunk most of the time when downshifting but also some times when upshifting 2-3 and i take the pedal of the gas slightly, not good on stop and go traffic for sure. its less rough on the mornings and it gets wors as i drive more during the day. im now at 52k and i did a fluid and filter service at 50k. after the service the issue went away for a couple of weeks but eventually came back again. i also had the adaptations reseted with no improvement. but after i changed the fluid the issue dissapear for a couple of weeks and the transmission downshifted smootly. i also noticed the adaptation counter for clutch B is way higher than the other ones, is currently on 158 times with a pressure fill of -1.5bar vs the other ones the adaptation counters are on the 10s or 20s. If you could give me any advice i will be forever on you debt Sr. Thanks for the videos, Keep the good work.

Thank you, blessings you help me build my faith. If you sell the kit I'll buy it. Thanks

Hi Gary, as you have replaced all the solenoids when only one was confirmed faulty, what do you do with the removed serviceable solenoids? Can these be cleaned and tested and used again? What do you do with them?

Thanks

Hi Gary, this is really helpful. I am getting a hard jerk on takeoff and stop in a 2011 535i with 160K miles. Since I am second owner, so I plan to do the sealing sleeve, the filter, fluid, solenoids, as well as a few of the gaskets on top mechatronic unit. I have done this on my wife's and daughters e60 535i cars and after resetting adaptation and the relearn procedure, the transmissions drove so smooth - like brand new! However, I noticed that on the 6HPs there is a foam strip above all of the solenoids where the TCU mates with the solenoid electrical connections - I assume this is to keep fluid out of the connections. I could not tell from this video if you would need a similar foam strip for an 8HP transmission. Was it possible embedded into the 8HP TCU so it did not show up on video, or is it just not used on 8HPs? Thank you for these videos!

Thank you very much for all the clips you made. There is an interesting question in bimmerfest forum that can 6hp21 be swappable with 8hp45? Of course it is easily to say no with many logical reasoning. But I think you are in the best position to tell, at least if it is physically swappable?

Nice video, thank you, but nothing about the elephant in the room. Most people do not read their owners manual, if they did they would know how to disengage the electronic park from inside the car, no dragging the dead cat or laying under a dead car needed. So when you buy a car first thing first is tune into that famous radio station RTFM also known as Read The eFing Manual. Nice to start with step one before step ten.

You’re a expert! Truly! My ZF8 jerks downshifting from 3rd to 2nd. Sometimes upshifting to 2nd. The dealership told me my fluid level was low. No leaks apparently. Could the jerking be caused by a bad valve body? Thank you

Thank you so much. Could not find much information on this issue. I got the 420042 and it's pretty much the same code but a short with solenoid C. Quoted $6000 from BMW but I will do it myself. Edit: did you have to take out the transfer case bracket in order to release the mechatronic sleeve to get the valve body out or was there enough room for you

hi,what was the millege? is it not good idea to change separator plate and Accumulators? Great job.

Hey Gary, so yesterday after resetting transmission adaptation on a zf8hp45 the car started shifting very roughy from 1st to 2nd and 2nd to 1st. I than later got this code 420321 - Gear-ratio monitoring: Gearshift 2 to x not plausible and car won’t shut out of 1st unless I turn the car off and back on.

These videos are great but it looks like the lens on the camera has dust on it which gives everything a glowing effect. Maybe cleaning it off with some air would help the picture clarity.

Hi Gary, nice video and very informative. I have a similar problem with my 2014 bmw 435i one night I went to grab something to eat and all of the sudden i got drivetrain malfunction pop on my dash, I pulled over, turn off the car and started it no luck the shift gear is stuck on park. These are the codes that I got is 420351 (Voltage supply output stages: short circuit to earth, permanent), CF3603/Intermittent signal and P0966 Pressure Control Solenoid B Control Circuit Low P0890 TCM Power Relay Sense Circuit Low. I cleared the codes except for 420351 is permanent and wont go away. I already ordered a kit for the mechatronic (solenoids, filter, fluid, etc) and hopefully this takes care of it. What is your expert opinion? I would appreciate it and thanks again. Note: I also have an 08 335i which i did the same method of replacing solenoids, filter, fluid and it works . I’m hoping the same thing happen here. More power!

Hi Gary, my bmw g30 have a noticable shift from 1 to 2nd gear? What could be a problem?

Awesome stuff Gary. You think you can do a video showing the fill procedure for this transmission?

Hey Gary, great work, where did you get those solenoids? You mentioned Ericsons(?)

Gar, since you guys are servicing zf8 transmissions answer me this, a lot of bmws have a whining noise coming from those modern zf8 transmission boxes. What is causing the whining noise inside these transmissions?

Thanks for the incredibly helpful video, Gary. All of my solenoids tested fine, but I noticed some melted plastic near the TCU chip as well as some discoloration and that "burnt electronics" smell. So I think this is probably the culprit that caused my transmission fuse to keep blowing. My question is where would I be able to find that part? Having a hard time locating one.

Great Video!! Question ; Im working on my ZF6hp26 and I am getting 24.4 ohms on the green MB 2 Park solenoid? does this seem right?

Hello Gary, its a good video.... I have a BMW X3 Diesel Automatic, I have a question, could you please help me to find out which solenoid in a valve body is a 2nd gear solenoid and reverse gear solenoid. Cause, I get a jerk when its kick down in 20-25 speed.

Hi mister, great video!!! Question, I have ZF8HP55 in my Audi A6C7 Allroad 230kw. When I tested solenoid all of it shows 6.0 omhs. It means that all of it is ok or no? I think almost same like yours in video! Thanks in advance! :)

Se podría con subtítulos en español. Lo poco que puedo comprender excelente!!!

no hard faults on 2012 bmw f30 having some strange shifting at 120km/h while accelerating. happens sometimes, usually after a down shift of 2 gears. it will then sort of lose power and jump between the top couple gears. almost feels like the torque converter unlocks but that could just be the feeling of loosing drive. All solenoids ohmn test ok, no fault codes, Im considering just washing them through, and refitting maybe swap the line pressure and solinoid B(6) with a couple others. the car has also came out of reverse while reversing up a hill the other day which was pretty wierd. i feel i should have looked closer at the values from obd and recorded hopefully during a mis-shift do you think flushing and cleaning the solenoids is an ok idea ? or should i replace thoughts. Thanks !!!

Code 420052, which solenoid is that?

hi boss we have bmw with fault code 420012 we test all solenoids it ok //// wht can test to clear fault

I have a question unrelated to the video where do you get your torque specs from for the transmissions and tolerances?

Hello Gary , where is a good place to buy the solenoids for my 2010 Range rover??? Thanks for a great videos...

I have an Iveco Daily van with the 8hp 70 gearbox. When the van is pulling a trailer the gearbox slips when reversing and when also pulling away uphil. Occasionally when cold the shifts are a little jerky. Van is on 120k with previous gearbox service by previous owner at 80k but is worked hard. Is this likely to be fixed through an oil and filter change or any other suggestions please?

Hello sir.. 4f58..what does it mean?bmw530d..we alrady replace solenoid but the issue is there

In a shirt? Good man 😂

Hello Gary. Your videos are superb. I have a bmw 525d f10 with zf8hp45 tranny.During acceleration form stand, the car jerks (probably harsh tcc lock up), it doesnt matter if I start from 1st or 2nd gear. The shifts after that are fine, there are no fault codes stored, adaptation values are fine. Adaptation reset and oil and filter change didnt helped. Is the problem with mechatronics or torque converter?

Hi Gary.. My 525i 2008 model has being bringing transmission faulty.what could be wrong? You are highly recommended

Hi Gary I have a 2018 Touareg, it has a 8HP45, it is stuck in park, fault code P17f900 fault description 'Parking lock mechanical fault', I have taken the valve body off and tested my each solenoid but they are all in range, is there anything else I can check? Im in England and no one on this island seems to know a thing about these boxes... any advice will be appreciated. Many Thanks

Thank you for this! There were 2 solenoids that were not changed though (a green and black one). Since everything is out, wouldn't it be recommended to change all of them? Also where can I buy quality (German) solenoids?

Hey Gary, do you know if the solenoids from the Chrysler 845RE and the ZF 8HP45 are interchangeable? I am not seeing a definitive answer online and the original blue/brown solenoid kits on my 845re seem to be impossible to find. thanks!

Hi Gary. Outstanding video. I have a 2011 BMW 740Li and I was backing out of a parking spot went to shift it in drive and it wouldn’t go forward. I had to call a tow truck. It said Drivetrain Malfunction. My BMW mechanic scanned for codes and received a 420012 - solenoid short to positive. I purchased a complete solenoid kit, fluids, pan, gasket, bolts. Did you resolve the issue and does it seem like this will resolve mine??

Hello. When I run a ZF gearbox, there is a phenomenon of jerking from D1 to D2 and D2 to D3. What is the reason?

I got a f10 2014 535i rwd that’s giving me transmission faults can I just swap it with a used one or should I rebuild it, and if I swap it how do I get it to work does it plug and work or do I need to relearn it, this is what the dealership told me “RAN SHORT TEST FOUND FAULT CODE 420321 GEAR RATIO MONITORING CLUTCHES A,B C, 4209A1 TEMPERATURE SENSOR HOT MODE1, 4209A3 HOTMODE 2. CHECKED TRANSMISSION FOR LEAKS FOUND NO LEAKS, FLUID IS LIFETIME FLUID. TEST DROVE VEH AND FOUND VEHICLE ONLY OPERATING ON 2 GEARS MAYBE2 AND 4”

N54 engine. 6HP19Z transmission

Hi. After changing the solenoids do we need to reprogram it

zf8hp transmission 420341 kod problem nedir help

Are those solenoids available through Tstar?

Hi, what should be the resistance of the green solenoid? Thank you

Hi I need your help ...my f30 gearbox get water...the gearbox cooler broke so coolent lick into the gearbox...I removed the gearbox clean it up...now I have this fault code 420641: Parking lock defectively engaged...please help me please

Have you ever experienced the code 4eb5 output stage voltage supply code ?

there is a delay when shifting gears and it is not fast enough can you please tell me what is the problem kodu 420341

sir can tell us the green color how many ohm if good

Hello Gary, thanks for yur vidéo. After rebuilding 8hp65a on Audi q7, the drive great but there is a bump when downshifting 5-4 only. No problems when upshifting and it happens only when i use the brake. No problems on S mode and manual. Just on drive. Have you ever met this problem? Any idea? Thanks Faouzi

Isit recommended to change all the solenoids

what do i need to screw up? I'm usually pretty good at this step.

Hi, Please a need your help!!! I have 420341 error code zf 8hp ( bmw f30 2012 ) and i have pressure clutch C : 750.. I dont know why is so high. Do you know what can i do? Thank you so much

Sir vibration car after repair how can find problem

Where can I get 8hp45 seals in 2024. Seemingly sold out everywhere !

Im in Australia how can I order these parts?

Hi Gary I have the same car bought it at auction 2014 335i trans malfunction light on the dash and the car won’t turn over , Autel is saying transmission is engaged to engine 6th gear? And indicators are registering P on the stick and P on the dash. Can this tranny be stuck in 6th gear and causing the car not to turn over? Could it be a Val body issue or transmission issue?. Thanks

Hello Gary, my error code is 420012, could the solenoid be 100% defective or not, and if I change the new one do I have to program it? Thank you very much.

How much will a repair like this costs ?

how to know Solenoid color for bmw F02 ////2009 /// 6hp19

Hi Gary we have 2016 Dodge Durango ZFHP45rn transmission is not shifting 1gear there two code P0731and P0735 we drop valvebody try to air test we dont have air test plate plz if you have air test plate parts number let us know and give us your option to fix this problem Thanks

interesting but much too long, the same could have been explained in 10 minutes