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Oh no! Your explanation is much appreciated. The replacement was indeed the sub battery, as confirmed by the dealer when I contacted him. My apologies. We have now swapped out the 12 volt and the sub battery. There was no start-up error message on the day the 12-volt was replaced. Each start the following day brings an error message. On day three, you should see an error message about every other start. Today, after six starts, there was no error message. It seems like things are improving. Returning next Thursday for additional diagnostic testing.

The battery that Mazda charges $250 for is available for less than $40 at Walmart or Amazon, so I would replace it myself if the warranty had expired. As an aside, the main battery of a PHEV is 355V (17.8KW), while the battery of a mild hybrid (one that is not a PHEV) is 48V. Assuming the hybrid battery was replaced under warranty, it's likely that you had multiple faults because Mazda would not have authorised the replacement without the associated testing and codes.

Found in the foot well area of the passenger compartment is the P143B, a 12V sub battery. I will be submitting my 2024 for this code next week. If you need help diagnosing or replacing the sub battery, this video should do the trick:

Amazon.co.uk : Mazda CX-90 PHEV 12 volt car battery

Amazon.co.uk : Mazda CX-90 48 volt battery

With 53k miles under the hood, I'm rocking a 2024 CX-90 PHEV. I am seeing the "Hybrid System Malfunction" message right now. Code P143B:00 was pulled by the dealer. My dealer replaced the 48 volt battery over the course of two visits. Swapped out the under-hood 12-volt battery at a later time. The error message disappeared for one day after the 12-volt battery was installed, but it later reappeared. The battery, which is about the size of a lawnmower, is located beneath the passenger floorboard. Remember that this went on for three months, and every time I started, I had to close the error message. In retrospect, I think the initial diagnosis was incorrect. Is anyone else going through the same thing?

For example, I just searched eBay for "0044301830" and got seventy-four results.

Posting a couple of links to your eBay search would have been helpful to the original poster. I did a search using the 830 Part#, but came up empty.

https://www.ebay.co.uk/?mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338181132&toolid=10001&customid=2518X1570512X6fc9d2fa852645d417d0308f3108abf9&subId2=15

On eBay, you can find around 50 of those 830 part numbers.

Look up the part numbers on Google. #Mercedes 0044301830 and others

http://shop.ebay.co.uk/?_nkw=master+cylinder&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338181132&toolid=10001&customid=2518X1570512Xa4c24a0804ef8ff79bc5fd49a9d5c3b8&subId2=15

Hey everyone, I'm in need of some assistance finding a used master cylinder/servo that matches my current one. The only one I've found so far is from a German breaker who isn't very communicative, and the part number is 0044301830. Whether anyone knows if other W202 parts are compatible, please let me know.Many thanks

Thanks! I've only tested it on the underwater side, but the door still turns on the inside light. I can verify if the passenger side exhibits the identical behaviour.

Is this an issue with just one door, and does opening the door switch on the inside light? This is completely conjectural, but I'm wondering if lubricating the door jamb switch might fix it.

Thanks, and there have been a few "intermittent faults" with the car, but they are manageable and relatively minor.

It is common practice to charge for diagnostic time; however, if a fault is found and covered by warranty, you will not be charged. If you're worried about the finances, you might want to consider enduring the fault until it becomes permanent. It can be quite challenging to diagnose intermittent faults because the car may not detect them when the fault codes are read because it thinks the fault is minor and happens intermittently.

Hello! My Kia has just gone over 3,000 miles and is due for its service at the end of the month. It's the second one in a row. On occasion, the door warning tone has failed to activate. Whether the car is in drive, neutral, or reverse, or if the lights are on or off, it appears to function. According to Kia, they can perform a diagnostic on the vehicle, but there will be a fee. Even if they don't find a problem, I will still be charged. Anything you can tell me would help a lot.

Strong mental picture of a man who, eight months later, died on the Hogs Back while driving his Mk1 Jaguar "at speed" (supposedly 80mph) after passing his team manager's Mercedes 300SL Gullwing. Mike won that Formula One race just a few months prior to his retirement. Every time I look at the painting of Mike Hawthorne's face—which happens once a month—it terrifies me. What a youthful spirit.

Since seeing it in a vintage Classic & Sportscar magazine many years ago, I've thought this shot was cool. Mike Hawthorne and Tommy Sopwith are seen in the photo, who was taken at Silverstone in 1958. The two Jaguar 3.4 litre saloons are wildly pitching as they speed around a bend. The tradition originated in the days when Formula One racers would take their cars to a saloon car event, drive them home, and then compete in the next weekend's race.

At 4.21, the illustrious Giuseppe Busso, whose V6 engine powers my Alfa, appears! That is an amazing film; I appreciate you sharing it.

Even at typical highway speeds, the roads they raced on are "challenging" for a contemporary vehicle. Separate eras. Also, I appreciate you sharing the YouTube URL.

On public roads across Italy, Stirling Moss drove nearly 1000 miles at an average speed of 100mph for two years, starting at 7:22am in the SLR and taking ten hours, seven minutes, and forty-eight seconds to complete the journey. That is why the number 722 appeared on all of his subsequent SLRs.