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For the interest of clarification, I would want to clarify that the car was travelling at 40 mph, not 100 kph. I am uncertain how that discrepancy appeared in my first post. Thank you.

Indeed, that is precisely what transpired. Mercedes retained the vehicle for around three months, substituted the high-voltage battery under warranty, and returned it to me without providing any clarification regarding the underlying failure. They replaced two buckled wheels when I indicated that a road test had evidently not been conducted. I acknowledge that manufacturers frequently do not disclose internal reports; nonetheless, in this instance, the absence of information is especially concerning due to the vehicle's complete power failure, resulting in an immediate loss of both braking and steering assistance. Upon requesting clarification or simply fundamental confirmation of their beliefs regarding the events, I received no response. Considering the gravity of the breakdown and its resultant crash, it is challenging to regard "no comment" as an adequate answer. I am want to ascertain if others have encountered a similar incident, as the lack of transparency from Mercedes renders it impossible to determine whether this was an isolated defect or a broader safety concern.

A driver may be caught off guard if the assisted brakes and power steering abruptly become heavy while navigating a corner at high speed.

You stated in the previous thread that after the incident, MB retained the vehicle for three months before returning it to you, claiming they changed the HV battery under warranty but declined to disclose particular details about the original defect (they also replaced two buckled wheels). Regrettably, this is prevalent in warranty repairs; automobile manufacturers typically do not furnish any information or evidence. On a few times, I managed to obtain a photocopy of their internal report from the dealer (Vauxhall), but they are normally disinclined to comply with such requests. However, you have had the vehicle serviced under warranty. What is the current issue? Have you lost confidence in the vehicle? Is it related to money, and can it not be eliminated without suffering a loss? Et cetera.

To reiterate my previous argument, Mercedes did not address the issue about the reduction of brake and steering assistance. I enquired if they had evaluated the vehicle under same circumstances (i.e., an abrupt power failure), and naturally, they were unable to do so, therefore they only instructed me to return the automobile. I remain without an explanation and possess a vehicle that experienced a significant malfunction, which they have been unable to replicate or diagnose. I am seeking individuals who have encountered similar experiences, since it now appears to be a safety concern that has been overlooked.

One would assume that functional brakes following any engine failure (whether electric or internal combustion) would be a legal mandate, alongside steering capabilities. I assume that you were unable to brake or steer upon impact, which contradicts your assertion that the brakes and steering were merely heavy. Merely inquisitive!

Has anyone else experienced the EQC400 unexpectedly shutting down while in operation? I operate a Mercedes EQC400, and recently the vehicle abruptly lost power when I was travelling at approximately 100 km/h. Upon its cessation: The brakes became exceedingly cumbersome. The steering became exceedingly challenging. The car functioned as though a conventional petrol vehicle had stalled—it merely coasted till it collided. I am currently seeking to ascertain if others have encountered a similar experience. I observe numerous online remarks indicating that individuals have heard of similar occurrences, although I am finding it challenging to locate authentic first-hand reports. If you have experienced this issue or know someone who has, I would greatly appreciate information on its resolution—specifically, whether Mercedes diagnosed the problem, whether the vehicle was repaired, and whether any measures can be implemented to prevent recurrence. Thank you; any information would be greatly appreciated.

Thank you for your response. I am fairly certain it is the CIS system. It may be 280E rather than E280, but it is 1980. Thank you.

The 280E spanned two distinct generations. The W114 employed Bosch D Jetronic, whereas the W123 utilised Bosch K Jetronic. If your vehicle is equipped with D-Jet technology, seek an individual knowledgeable in this system; they may be specialists in Volkswagen or Volvo, as it was utilised in those brands. Any German automotive professional knowledgeable about 1980s vehicles, particularly those specialising in the Ford Capri (2.8i) or XR4i, will be familiar with this technology. If it is an E280, it will be from 1993 or later and will utilise Bosch Motronic fuel injection.

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Seeking a somebody in South Lincolnshire to examine a friend's E280 injection system. Thank you

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I consistently advocate for initiating with the utmost simplicity when addressing such challenges. Given its intermittent nature followed by a non-drivable issue, have you verified that all ground connections are secure and free from corrosion? There are numerous items in the new BMWs, including some located beneath the front carpeting. If it has been malfunctioning for some time, it may have become detached beyond its capacity to ground, or the vehicle may have experienced prior water intrusion, resulting in mild corrosion of the ground connection. A friend of mine with an X6M recently encountered a comparable issue. He took it to an independent mechanic who replaced numerous components without resolving the problem. I visited, lifted the front passenger carpet (the passenger side on a left-hand drive UK vehicle, near the A-pillar just south of the glove box), cleaned and tightened the three grounding points located there (the bottom two were corroded due to his wife leaving a window open, which soaked the passenger side years prior). After pressing the button, the vehicle started without any subsequent issues.

I consistently advocate for initiating with the utmost simplicity with such matters. Given the intermittent nature of the issue, which has escalated to a non-drivable problem, have you verified that all ground connections are secure and free from corrosion? There are numerous items in the new BMWs, including some located beneath the front carpeting. If it has been malfunctioning for an extended period, it may have become detached beyond its capacity to ground, or the vehicle may have experienced prior water intrusion, resulting in mild corrosion of the ground connection. A friend of mine with an X6M recently encountered a comparable problem. He took it to an independent mechanic who replaced numerous components without success. I visited, lifted the front passenger carpet (the passenger side on a left-hand drive UK vehicle, near the A-pillar just south of the glove box), cleaned and secured the three grounding points located beneath it (the bottom two were corroded due to his wife leaving a window open, which soaked the passenger side years prior). After addressing this, I pressed the button, and it started immediately—there have been no issues since.

Firstly, I greatly appreciate your response! This situation is overwhelming me! I verified the electricity from the fuse through the firewall connector. From that point to the trans connection plug, power was sent to the GCS. I was attempting to ascertain which pin directed to the subsequent location and what that entailed. I am presently attempting to identify the CAS module to confirm the power and signal to it at this moment.

Given the several problems, it appears to be a power supply issue. You are at the wiring diagram section to verify the power supplies from the CAS and JBE, as that is where the power for the various modules in the vehicle originates

My X5 intermittently displayed "transmission malfunction" on the dashboard for approximately four months. No drivability concerns were present. Suddenly, it failed to crank, start, or activate the accessory lights upon pressing the start button. I scanned it and discovered a trans code indicating a voltage of less than 6.7v. I examined the battery and measured 12.43 volts. I charged the battery nonetheless. I subsequently verified the power flow from the battery to the fuse box and then to the transmission connector. I replaced the starter as planned, and I also replaced the GCS/valve body under the assumption that the transmission computer was defective. Unsuccessful. What should I do next?

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I purchased a Wolfbox rearview dash cam. Functions exceptionally well. Significantly improved rear visibility and infrequently impacted by weather conditions. It is imprudent of Toyota designers to neglect rear visibility when the vehicle is stationary.

Toyota's decision to reposition the centre brake light to align with the standard brake lights represents a regressive advancement in safety.

It is reasonable to assume that a rear wiper would have been included.

It is regrettable that you did not verify:🙄

I share the same sentiment; it poses no difficulty for me either travelling locally or over large distances, including vacations to France in both summer and winter with two electric mountain bikes on the towbar bike carrier. Agree that the 360 camera functions effectively; however, the rear visibility is limited when the bicycles are mounted in the rear.