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Your thorough explanation is much appreciated. I think I've finished planning my weekend project 🙂

I would say that I have taken an interest in doing some basic auto stuff on my own in the past year or two. Services such as oil changes, radiator drains and refills, brake pad replacements, and so on. Usually I take it to this auto parts store to get it read out since I don't have access to a code scanner.

Last week, the traction control and check engine lights came on. I went to Autozone to get some codes read, and they shared P2401 and a few of others (all having to do with emissions). I replaced the gas cap, put it on, and gave it a spin, but it still wouldn't start. After that, I disconnected the negative battery terminal for 10 minutes to force a hard reset, and the lights stopped flashing. Following it, the idling was subpar, and it would occasionally die when I pressed the brakes to halt. I discovered that these automobiles require a few minutes of idling before they can retrain themselves, so I might have to leave it running at idle for that. That fixed it; for the next two days, I had no problems with the lights. Nonetheless, both lights turned back on today. Is anyone else familiar with this or has any thoughts about what might be happening? Perhaps you should clean the MAF sensor or the throttle body; I saw that mentioned somewhere.

Are there any kind of callipers that are binding?

My wife will be displeased; she utilises it frequently during chilly weather, and it has not yet been addressed here.

My TPMS is quite precise when compared to other pressure measurement devices.

It would merely be conjecture on my part; you should consult a somebody proficient in Xentry for assistance.

It appears to have lost communication with the engine ECU. Unless you encountered floodwater enough deep to cause hydrolock in the engine....

That would alarm the elderly residents in this area.

If the system pressure is excessive, the cap will release pressure.Simply operate the vehicle. Monitor coolant temperatures using a scanner; they should generally remain below 100°C.

Ensure the coolant cap is replaced with the new tank. You may also do a hydrocarbon test in advance using a Block Tester from NAPA. This will detect hydrocarbons in the coolant; if present, it indicates a leak in the head gaskets.

Annually, indeed. 😂 Provoked amusement. Is it also protected from the rain?

There was never a problem during the testing of my OM642, therefore I presume this has been considered? There are few driving scenarios in which one would surpass 3000 rpm in a 3-liter V6 diesel engine. 🤔

It has likely spun a bearing. Occasionally, they do such action after an oil change. It is likely not their responsibility.

A six-cylinder engine often has less issues.

The 2.0 will use a four-cylinder engine, unless when purchasing a vehicle from the 1990s.

😉

NOx sensors exhibit an occasional problem; nonetheless, based on my experience, I assume their functioning is at the threshold of arbitrarily defined software settings. Having changed the NOx sensors on my C350 three times, I no longer pursue this issue. For the last five years, I have just dismissed the error code upon its annual occurrence and proceeded without any complications. I believe that the recorded NOx levels sometimes above the designated threshold, triggering the code. The program has not been designed to address this unforeseen error, instead mistakenly resorting to a need for sensor replacement. I would want to ascertain the number of replacement sensors that have undergone appropriate testing rather than being discarded. Undoubtedly, Bosch or any other manufacturer would not advocate for an action that may result in significant financial losses from new sensor sales.

...unless it pertained to the wife's side... in that case, I would use an old one from a Micra!

Utilise this, since I own an electric vehicle that displays energy use. Could it display MPG on your device? Page of status. Navigate to Vehicle Management. Select the report option. Energy utilisation.

Does this also occur if you deactivate DSC?

Realoem provides all potential brake combinations, therefore facilitating the identification of the component number.

Input the last seven digits of the chassis number on realoem.com to get component numbers. I will be replacing both rear shocks, not just one.

I replaced them since I purchased them second-hand, believing they had the same issue as mine. What is the method to contact Bell Engineering? I now own two pairs of Haldex and a rear differential in my backyard, along with one new set put in the vehicle.

Are you certain that this might be the problem? I left the vehicle with the Haldex pump unplugged (no power to the back wheels), and it remained silent, while the PTU was rotating freely. I will seek that spline, thank you! Do you possess any other hypotheses on the potential issue?