calling for gbox sifu....

[chetz]

whut could be the problem for.. trouble code 54, gearmonitoring 4(po734)... pls advise me..ive change the valve body.. service the solenoid.. and crankshaf sensor.. still my gbox got problem... pls.. advice me.. thank you.. thank you..

 

[chetz]

anyone having this prob before.. pls advice me.. thank you..

 

[ray123]

wat problem ur gearbox has? cannot shift gear or jerk?

 

[chetz]

ive just serviced all the 6 solenoid.. change the crank shaft sensor.. and the valve body wiring aswell.. it solve the problem for awhile.. but after sometime.. the gear indicator turns on again.. sent it back to the whop.. the code that appear is

code : 49
symptom, gearmonitoring

im assure theres no gearing mechanical failure as u may see the pic from the link below...
http://www.bmwclubmalaysia.com/forums/showthread.php?t=27335&page=5

anyone has experience this before?? is it sensor?? or perhaps other wiring prob??

 

[oligokoko]

1st of all, whut model is this? 2nd thing, frm my experience, gear monitoring probs can b solved with a gbox change. ori or recon will do. n also please reprogram d car after replacing d gbox, this apply to d gbox with an integrated CU inside d gbox housing. gear monitoring prob can b either mech or electrical prob.

d steps u have carried out is d right procedure before confirming 2 replace a gbox. d only thing tht u need to know is d workmanship done on ur gbox is good or not. if it is not, then its a waste. solenoids r usually b replaced together with d valvebody. wrong solenoid position at d valvebody also could lead 2 gbox probs. n i dun c d relavant of replacing d crankshaft sensor to solve this prob.

-have u tried 2 reprogram ur gbox CU?
-have they done a proper checking while removing d valve body? any visual damages 2 d gbox shafts?
-any signs of leaks/burned gbox oil?
-torque converter pressure enough?
-some ppl also say tht there is a Rotational speed sensor which monitors d input shaft's speed. this depends on ur gbox model n d parts 4 it is quite hard 2 get.

all of d above might b d possible cause or will lead u 2 another clue to solve ur prob.

happy troubleshooting!


* source : http://www.bimmerboard.com/forums/posts/63702

 

[oligokoko]

this might help u also.

happy troubleshooting!

 

[chetz]

1st of all, whut model is this? 2nd thing, frm my experience, gear monitoring probs can b solved with a gbox change. ori or recon will do. n also please reprogram d car after replacing d gbox, this apply to d gbox with an integrated CU inside d gbox housing. gear monitoring prob can b either mech or electrical prob.

d steps u have carried out is d right procedure before confirming 2 replace a gbox. d only thing tht u need to know is d workmanship done on ur gbox is good or not. if it is not, then its a waste. solenoids r usually b replaced together with d valvebody. wrong solenoid position at d valvebody also could lead 2 gbox probs. n i dun c d relavant of replacing d crankshaft sensor to solve this prob.

-have u tried 2 reprogram ur gbox CU?
-have they done a proper checking while removing d valve body? any visual damages 2 d gbox shafts?
-any signs of leaks/burned gbox oil?
-torque converter pressure enough?
-some ppl also say tht there is a Rotational speed sensor which monitors d input shaft's speed. this depends on ur gbox model n d parts 4 it is quite hard 2 get.

all of d above might b d possible cause or will lead u 2 another clue to solve ur prob.

happy troubleshooting!


* source : http://www.bimmerboard.com/forums/posts/63702

hie,
thanx for ur reply.. mine is e46 325.. zf gbox 19" pls check the link on whut ive done to the gbox..

http://www.bmwclubmalaysia.com/forum...t=27335&page=5

as u can see.. i think there's no mechanical failure on the gearing.. first ive bought a recond valvebody.. it goes ok for awhile.. on the 2nd day after took out from wshop the indicator turns on again.. dont wanna drag and harm my car.. so i sent it back.. now i ask the foreman to take out the recond valvebody.. ask him to service my original valvebody and change all 6 solenoid.. cracnkshaft sensor and the wiring that connects to the solenoid as well..

take out my car today.. it runs perfectly.. but upon dygnose theres still an eror occur which is..
code : 49
symptom, gear monitoring

could it be the airflow sensor?

gbox indicator turns on and off sometime.. any idea seniors?

 

[teejay]

seems like a typical TCU failure/fault

you will need to goto a mech that has a diagnostic tool that is able to read your TCU and possibly calibrate it after those repairs you did

also look at other sensors relating to the TCU, which cause this fault code

if everything else fail, its time to change car.....

 

[oligokoko]

my advice is, just bring it over to any SC n check what is d fault code means. outside OBD might have different types n also different meanings 4 every faults. get 2 SC n ask 4 their opinion n get d diagnosis report. their fault codes r better 2 understand n most of d time more accurate

when there is no solution, replace d whole gbox or do as whut teejay sugggest.

 

[teejay]

my advice is, just bring it over to any SC n check what is d fault code means. outside OBD might have different types n also different meanings 4 every faults. get 2 SC n ask 4 their opinion n get d diagnosis report. their fault codes r better 2 understand n most of d time more accurate

when there is no solution, replace d whole gbox or do as whut teejay sugggest.

add to oligokoko info,
the diagnostic tool in SC will pinpoint exactly what is wrong and with possible suggestions to fix the problem, these tools cost alot, thats why they charge accordingly too

SC usually have this kind of knowledge/experiences , no need to beat around the bush and start changing stuff based on your own knowledge or other people's suggestions

meanwhile, my suggestion to change car is unfair to the next owner, who would probably end up like our fellow forumer JOKER, who cursed and swears at the previous owner , so I suggest you fix it first then sell it ....:wink:

 

[chetz]

add to oligokoko info,
the diagnostic tool in SC will pinpoint exactly what is wrong and with possible suggestions to fix the problem, these tools cost alot, thats why they charge accordingly too

SC usually have this kind of knowledge/experiences , no need to beat around the bush and start changing stuff based on your own knowledge or other people's suggestions

meanwhile, my suggestion to change car is unfair to the next owner, who would probably end up like our fellow forumer JOKER, who cursed and swears at the previous owner , so I suggest you fix it first then sell it ....:wink:

thanx for ur swift reply seniors.. erm, dont think im gonna sell it.. at least not for another 2-3 years.. sending it back to AB.. where i maintain.. the reason i took out from there is becouse their parts are so expensive...

i think my gbox almost ok edy.. but not sure:63:

today i drove the car.. it went smooth but theres some strange guts telling me.. i think the problem almost solve edy.. (valvebody) it just some poor workmanship that might couse the other prob..

after some quite distance ride.. then i went home.. only i realized.. later before i went out for dinner just now.. when i switch the car key into the on mode.. (where the engine checking starts) i find there's some kicking sound from the gb.. (although the gear is still in P position) would it be something with gear leaver? and its a bit hard to pull from P to D.. the indicator turns on and of sumtime.. but i dont dare to pull my gknob when its on.. so i switch off and turns on again.. it takes few times.. then it goes fine.. can pull smoothly into D position..

some answer that might wonder seniors though...
1) ya.. they do erase the prob after rebuild the gbox..
2) after erase it.. (1st attempt when i change the whole valvebody) the code gone.. but after few days it appear again.. send for dygnose guts telling that its the 2nd hand solenoid as its not been used for quite sometime.. so ask the foreman to take out 2nd hand.. service my valvebody, changed all the 6solenoid, crankshaft sensor and the wiring as well.. manage to solve the code problem.. (which is 3error code) now the code that appear is...

code : 49
symptom, gear monitoring

3)serviced the o-ring as well.. change ATF bout 8liter
4)changed the wiring (solenoid/valvebody wiring)

based on ur opinion.. pls advice me on this.. thank you~

 

[teejay]

your gb has the problem with or without the codes erased. FULL STOP

codes come out for a reason, means there is still a problem

read my first post and you will be enlightened, or else if you still insist on your own troubleshooting, then please go ahead and don't ask for anymore advise from the seniors......

 

[chetz]

your gb has the problem with or without the codes erased. FULL STOP

codes come out for a reason, means there is still a problem

read my first post and you will be enlightened, or else if you still insist on your own troubleshooting, then please go ahead and don't ask for anymore advise from the seniors......

ya.. i get ur point.. otherwise whuts a forum for.. im here seeking for advice.. i know my gbox got prob.. thats y im here.. btw thanx for ur opinion.

 

[ozzy888]

Hi , i got my gearbox changed , which i think is a 2nd hand , not a recond gearbox. i later found out that i cannot upgrade my software (keeps telling to change the gearbox, due to the 40 times limit to software change to the gearbox)
E65 04 735i UK.
silly question i hope not , but can i add more power to my car with some remapping service ? any suggestions ?

thank you..

 

[teejay]

ya.. i get ur point.. otherwise whuts a forum for.. im here seeking for advice.. i know my gbox got prob.. thats y im here.. btw thanx for ur opinion.

your latest post confirms the diagnosis of a failing TCU, soon you cannot shift into R

also better make sure you put on handbrake always cause the gb might just engage gear itself even if you put P or N , electronics can be very dangerous at times especially if it is sick.....no joke....

 

[chetz]

your latest post confirms the diagnosis of a failing TCU, soon you cannot shift into R

also better make sure you put on handbrake always cause the gb might just engage gear itself even if you put P or N , electronics can be very dangerous at times especially if it is sick.....no joke....

err.. sorry for asking.. newbie here.. TCU stand for whut bro teejay? Transmition Control Unit is it? which part of the gb is the TCU? say im considering changing the whole piece of the gb.. based on ur exp.. how much it would cost for a zf 325 19" gb?? whuts the diffrent between second and recond..?? and normally.. how long the warranty they provide?

 

[BJC8282]

I have friends who is specialised in BMW Technical,location in Pandan Indah K.L.. to avoid from gearbox problem,please don't spray water to your engine,just wipe using a piece of cloth wisely and don't drive on muddy surface too...Usually BMW E46 and E30 face this problem...

 

[elixir]

err.. sorry for asking.. newbie here.. TCU stand for whut bro teejay? Transmition Control Unit is it? which part of the gb is the TCU? say im considering changing the whole piece of the gb.. based on ur exp.. how much it would cost for a zf 325 19" gb?? whuts the diffrent between second and recond..?? and normally.. how long the warranty they provide?

Bro, why do you want so much headache solving the gearbox problem yourself??? All you need is a good and reliable workshop to settle your case. They could have solve your problem less than the cost of replacing the gearbox.
If you continue to do your own trial and error, you will end up spending unnessesarily and most important, would not be able to enjoy your car any sooner.

 

[chetz]

can anybody pls explain whut is TCU and which part of the gbox?? thank you...

bro elixir, u though u DIY?? of course im sending it workshop to do this job..

 

[elixir]

can anybody pls explain whut is TCU and which part of the gbox?? thank you...

bro elixir, u though u DIY?? of course im sending it workshop to do this job..

of course i know it's done in a workshop but how come the workshop cannot tell you what's the problem with your gearbox? instead, you have to check what the error code means, the TCU....etc
like what the other suggested, send the car to AB for diagnostic or get a second opinion. then check pricing and decide what to do. better than cracking your head.
however, it's just a piece of advice here and i'ts up to you how you want to do it.
good luck:top: