Citroen C4 1.6 16V - change of the AL4 automatic transmission to the BE4 manual

Question

Hello as above, I recently bought a C4 English from 2007, unfortunately the car has an AL4 automatic gearbox which I would not want. Due to the fact that I have the option and the car will stay for at least 4 months, I would like to change this box to a manual one, but BE4 which are already...

Tomasz Downacki · Accepted Answer

As for the gearbox, I will not help, but when it comes to electronics, you need to reprogram the BSI and the engine controller to see the manual gearbox. I worked on this topic myself in a Citroen c5. Without reprogramming, he did not even want to fire because he did not see the position of P.

Strumien swiadomosci swia · Accepted Answer

Cut out what is not needed of course.

Tomasz Downacki · Accepted Answer

You will make lexia. Hide installations. There is no point in cutting it. Valuable notice. Because as for the type of chest, there was no knowledge.

intels · Answer

I understand that it will reprogram everything with lexia I also have launcha at my disposal? The question is, what about the bundle of the box under the hood, can it be simply cut off after the changes?

intels · Answer

Thanks to everyone for any comments. As for electrical matters, I only have to connect the reverse gear sensor, unfortunately I can not find a diagram or instructions where to plug it in, I guess that this signal goes to the BSM only the question for which pin. If someone has a diagram, I would ask for information or sharing it. I have BSM L-11.
best regards

intels · Answer

Well, unfortunately, through the forums it was not possible to get information whether at least a piece of the diagram, fortunately, a colleague from the company arranged for me access to the citroen service website, where I printed the necessary diagrams and I already know where and what to connect, unfortunately even Citroen does not boast about the types of be4 boxes there there are only so many that they were, but more precisely what not. Well, I will have to look for something that will be pulled directly from this engine. To everyone who wanted to help in a queue, thank you when I get a model of the box that fits, I will write here if someone ever wanted to do something similar

matmirek · Answer

I have the same problem. You can give me some information on how the crates can be mounted and provide diagrams and comments. Best regards. matmirek(_at_)wp.pl

intels · Answer

As for the be4 boxes, unfortunately, I could not get the right one, supposedly 20dm12 or 20dp10, but the prices are high and I bought a 20cq16 complete with support shafts and a clutch. In Lexi, you have to throw out the automatic unit in the bsi and the engine control unit and switch to manual, then the car normally fires and the meter switches from automatic to manual. As for the reverse, you need to connect to the bsm module, I have a diagram but I have not checked it yet because I have been waiting for the papers for almost half a year. I translate the car and soon I will check if the diagrams find their application in the car. I will write what and how to connect

intels · Answer

Well, the spacer is finished, the reverse light connected according to the diagram works as it should. Adds a schema for posterity as if someone had the same problem so as not to search best regards

DanielC4 · Answer

Hello
I have a problem with the BVA AL4 gearbox, I also wanted to replace it with a manual one. Please tell me how much did this treatment cost you. And is everything ok with the car? There is no problem with the engine and do you have any technical advice on what to watch out for?
Thanks in advance
best regards

matmirek · Answer

I did not replace and today I will not answer what problems I encountered, but I will try tomorrow.

intels · Answer

The costs I incurred are about PLN 800, but I replaced everything myself and the al4 box was operational, which can be sold. There were no major problems, the starter fits the engine body, there are no changes to the automatic. The car works as if there was never an automatic machine there if you have any questions, I will be happy to help, best regards

matmirek · Answer

Unfortunately, I do not have the conditions to do it myself and all the mechanics advise me against it and say that I will have problems later. The costs that, in their opinion, I will have to incur is PLN 2,800, which becomes unprofitable. And a small note about what I am writing about because I have a C8 with the same engine, but they say that the paw and many other parts do not fit and I will have to buy a lot of parts including the starter, driveshafts, pedals, counters, mounting / base for the gearbox. Generally, no one wants to play it or demands too much money in my opinion.

karmazynio · Answer

Hi
Sorry for the excavation
I have a small question, namely at home in Citroen c5 3.0 V6 I translate to manual gearbox, precisely because of the automatic gearbox, which I have already had the third time. My question is, in Lexia I have set up BSI that there is no automatic transmission, the same in the engine control unit and ESP. The problem is that it doesn't give a boost to the pacemaker. After that, after disconnecting the controller from the automatic transmission, BSI catches the error 'No communication with the engine controller'. You had such problems with the rework and how did you deal with it
Thanks for the answer

matmirek · Answer

It seems that you have not completely got rid of the automatic gearbox and the computer does not see the P position, therefore the starter does not work. Someone wrote that it is enough to short two cables and that's it.

karmazynio · Answer

BSI in lexi just sees Park positions, at least that's what it shows in parameters. In addition, after firing its own for a short time, when the automatic gearbox controller is connected, the counter works, ie RPM, temperature, etc., but only the counter dies and there is only the backlight.

matmirek · Answer

Unfortunately, I did not find any posts in which this problem was discussed, but someone wrote that after reprogramming the counters were also set to the manual.

karmazynio · Answer

Thanks for your commitment, I've got it all. It flashes beautifully, the cruise control works, the reverse sensors and clutches are connected. It accelerates smoothly, without jerks, gearbox 6 inserted, so far in the testing phase, because there was no gearbox 6 here, but first impressions good, on the highway 6, gear as found ?

kaziupsv · Answer

Buddy, please describe which jumpers you shorted and do you need Lexia?

Citroen C4 1.6 16V - change of the AL4 automatic transmission to the BE4 manual

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