In my experience, I have a clear idea of how long this Valta battery has been used and when I listened to the weak voice of the starter during the recent cold start.

The driver looked back at me, and we said in unison: did you lose electricity?
I opened the trunk and operated in the cluttered and cluttered trunk of the spotted pig. I found the 360 electric meter, confirmed that the electric meter was full, and skillfully opened the hood. After opening the Red Cross logo protection cover of the pre-melted fuse box, I began to start. Unexpectedly, it still could not start after electrification.

Puzzled, it occurred to me that this instrument has been used for many years. Is it possible that it is broken? Because in the final analysis, the electrified instrument is only a reinforced portable battery, it also has a life span.

So, we each scanned the code and rented a shared bike, rode back to the company to change cars, and also found an electric pick-up machine to see if it could be started.

In Yongcheng, which was still over 20 degrees yesterday morning, it not only rained in the afternoon, but also dropped to 5 degrees, which is probably the scene in the following picture.

Then, I was a running operation, connected to the electric instrument, accompanied by “click” three times, the start failed again.
Bizarre, I am puzzled, with my simple knowledge of auto repair and we have seen so many cases of power loss can not be started, but this situation has not been seen.

Because there was an important meal in the evening, after I found the diagnostic computer from the trunk, I first drove to the party and asked the driver to connect to the computer to read the fault code.

Unexpectedly, not long after I left, he sent me a screenshot on Wechat. The first fault code was “Y3/8N4 (fully integrated gearbox control unit” damaged, and the second was “communication failure with gearbox control unit”.

All of a sudden, I was dumbfounded, and now ten thousand horses galloped in my heart. I thought about the balance in my wallet. I felt like I had been robbed of dozens of Grandpa Red Mao.

The gearbox computer malfunction which has been instructed countless times in the forum before, does it really appear on your own body? Is it true that the perennial mercenary behavior of profiteers has greatly reduced the value of people, and finally went offline to their own gearbox computer?

So I initially judged that the anti-theft key caused by the Y3/8N4 gearbox computer could not be sent back to the N73 electronic ignition lock, and the gearbox valve body oil circuit board assembly should be removed for maintenance. But I also remember that a few days ago, some classmates and I reported that the professional shop recommended by our forum had quit. At this time, I was hesitant, how should I deal with it?

When I came back from dinner and read the fault code again, I found that the driver only read the fault code of the engine and gearbox, not the fault code of the whole car (ten thousand words of criticism was omitted here). Re-click the fast test and scan the whole car. I read out more than 30 fault codes with too low power supply, all of which are too low, all of which are caused by repeated startup or electrified starting. that is not to mention a relief, the feeling that the people’s currency has been lost.

So he called the road rescue of Mercedes-Benz, started it by electricity again, and drove home first as usual.

But I wonder why neither of the two electric instruments can be started. Take them home to recharge and study, after my careful study, repeated charging, the two electric instruments are malfunctioning. Don’t laugh, it’s an one-in-a-million probability. You can buy Mark six.

I did not change the Sail EFB H7 or Sail 58043 recommended by our forum this time, because the quality of Tang shallow’s battery is as good as that recommended by our forum, and the coupon given to me by JD.com ‘s flagship store, my Little Liwei has been using the Tang shallow battery for nine years, and it is all for short distances.

When the driver went to change it, he took back some photos for me. The new battery was produced in September 2023, and the replacement is also very quick.
Now it’s winter again. I suggest that before we enter the winter.
Using the battery detector to judge the remaining life of the battery, the multimeter is not good. Many shops that change the battery have this kind of battery detector. Before the weather is cold, check it. It is very simple. Acquaintances use it free of charge.
Car battery, as long as not excessive discharge, can be used for at least five years, unless often turn off to listen to the stereo, battery perennial lack of power, it will certainly be scrapped ahead of time. The same is true of cars that often run short distances.

After I came back, I tried it myself again. The startup is very strong, and the anti-counterfeiting code of the battery is also authentic. After all the fault codes are eliminated, this maintenance ends here.

This time it is also a profound experience that “the doctor cannot cure himself”. When it comes to the failure of his own little rushing, he is paranoid.