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Are the battery terminals and posts clean and secure, and are the wires in satisfactory condition?

I possess a 2007 W639 and have experienced an intermittent issue with starting when the engine is heated. It merely emitted a click, like to a depleted battery. However, if you kept the hood raised and attempted to start the engine every few minutes, it would gradually begin to turn over with the key, initially very slowly and for only a few revolutions, then increasingly faster and longer until it eventually began. The cold start was consistently satisfactory. The battery passed the test, however it was aged (the original from 2007); the earth strap and connections were satisfactory. The battery is located beneath the passenger seat, hence it was not subjected to heat soak from the engine impacting its performance. The initial concern was a 'lazy starter motor,' a common issue with certain brands, particularly BMW. However, I opted to replace the battery because (a) it was aged and (b) this solution was significantly more economical than purchasing a new beginning motor, which ultimately resolved the problem.dk: It has been satisfactory ever since.

I will request my dealer to verify. I assume it cannot be delivered to home? Requires placement on a lift?

I appreciate this. I have been searching for this part number.

I brought the vehicle to the battery shop since it remained under warranty. The battery was inspected and deemed to be in good condition. They transported it to a local Exide testing centre and informed me that it was functioning properly. The warranty replacement applies solely if the battery is entirely nonfunctional and does not revive after bench charging. ChatGPT identified it as a weak ground strap issue. However, the Mercedes-Benz dealer asserts that such a part does not exist. The alternatives available to me are: 1. Disregard the problem until a more significant issue arises. Proceed to the dealership and purchase their battery (Varta, rebranded for Mercedes) for around 50,000. Purchase an additional Varta battery for 27,000. What actions should I undertake?

I brought the car to Mercedes today, where they examined the battery and said that it needed replacement. Xentry disclosed no errors. The auxiliary battery was likewise in good condition.

Approximately one and a half years have elapsed since I substituted my original Mercedes battery with a Varta cell of identical specifications. For the past six months, the auto start-stop feature has been inoperative, which I have perceived as a hidden advantage. Recently, the cluster has blackouts on cold starts. I have communicated with the battery vendor and provided my voltage readings obtained via OBD2, which have also been verified with a voltmeter.

Indeed, it is a straightforward coding problem: an option inside the display module was inadvertently deactivated, and unless it is restarted using a diagnostic tool, the panels will persist in displaying an orange hue without any information. Regrettably, without a programming tool such as ISTA or a comparable device, you are unable to rectify the issue independently. A MINI garage or BMW specialist can restore the function within minutes by adjusting the appropriate code setting.

This is evidently a situation involving an inadequately deactivated function in the display module, and unless this option is reactivated through a diagnostic tool (diagnostics/programming), both screens will persist in illuminating orange without presenting any data. Regrettably, without a reprogramming tool (ISTA, Autologic, or a comparable device), it is unfeasible to restore the odometer to functional condition independently. The sole remedy is to visit a MINI store or a BMW/MINI specialist capable of reactivating the function in the pertinent module. Fortunately, the procedure is expeditious and solely necessitates rectifying the coding.

This is evidently a situation involving a malfunctioning deactivation of a function within the display module, and unless this option is reactivated through the diagnostic tool (diagnostics/programming), both screens will remain illuminated in orange without presenting any data. Regrettably, without a reprogramming tool (ISTA, Autologic, or a comparable device), it is unfeasible to restore the odometer to operational status independently. The sole remedy is to visit a MINI garage or a BMW/MINI specialist capable of reactivating the function in the appropriate module. Fortunately, the procedure is expeditious and involves merely a code adjustment.

I completed mine this morning; they indicated it would require two hours. However, I believe it actually takes five minutes, however they are billing Mazda for two hours of labour per vehicle. It is a straightforward software update.

You may reset it by disconnecting the negative battery terminal for 10 minutes.

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