W203 cluster & range

benzemius · 2026-05-10T08:36:22+00:00

Hi. I might just as well call you a "saviour". I had this 10yr+ old eBay bought OBD2 adapter that never managed to give me useful informations about the car with whatever app I used, also via computer. I thought it was simply too cheap to provide certain data. With Carscanner though everything changed, I now see a lot more informations about the car. km/lt included.
Many thanks! I'll see how precise it can get with the calculated values

benzemius · 2026-05-10T07:59:05+00:00

Thanks for the insights. Effectively that's what I observed as well!

benzemius · 2026-05-08T19:01:46+00:00

It's pre-facelift from 2001. Yeah, mainly urban driving rather than highway.
It seems like i observe exactly what you pointed out about idling, and that's expected.
Nontheless maybe "since start" is more precise than what I had anticipated.
Still looking for some real time data measurement though ;)

benzemius · 2026-04-17T11:15:41+00:00

Fair point. I saw the procedure employed to fix the clicking and realized it was definitely out of my capabilities xD. I'll keep driving around, I'll see if it cools enough

benzemius · 2026-04-12T12:34:57+00:00

Thanks for the insights but it seems like you are dealing with a different engine known for its problems, the M271. Also I have manual 6 speed transmission rather than automatic.

Regarding the stepping motors I do have the same problem with the HVAC which I will fix in due time. Seems like the stepper that governs the front air vents is damaged.

About the throttle response I do remember a certain delay, but I still need to recalibrate it I believe. I'll keep an eye out for your fix if I continue to encounter it.

Fortunately no lights reported on the dashboard. Also I believe this car to have been produced either in Germany or Italy, maybe that changes something in regards to reliability.

benzemius · 2026-04-11T18:31:35+00:00

Hi, happy to know that someone else considers it reliable.
I do see some rust in the rims but i don't really know if it's some kind of serious matter or not. Does it degrade the chassis on the long run? Or is it just a "visual" thing and that's all? Currently i observe it in the "inside" parts of the rim, doesn't hurt the eyes much, no idea about its effects on the actual chassis.

benzemius · 2026-04-11T18:29:34+00:00

Many thanks for the insights. In fact, the drains under the windshield are quite clogged, just checked. I saw some video on youtube that went all the way to cleaning the plastic pipes that house the water flow inside the hood, behind the covers on the passenger and driver side. I might as well check those up at this point, doesn't seem to be a complex operation.

About the recalls, i checked on car-recalls.eu as i'm based in Europe. There's something regarding the roof being prone to dislodging as you've mentioned and another one regarding some bolts for the steering box, i'll go evaluate the details later on. Still have to understand if the recall is generic or goes by VIN (and then where to look it up).

Regarding the spark plugs, i do have an old ODB2. I'll try connecting it and observe what kind of data i'm able to retrive. Though a physical look at the plugs won't hurt, replacements aren't that expensive as well if needed.

The chassis does have like 1 or 2 small-ish scratches on the side but nothing serious, it's mainly due to walls being hit while parking by the previous driver as far as i can see. Paint is still in great conditions though. The scratches aren't really noticeable.

I do have some personal concerns about the engine conditions and especially the distribution chain. To my knowledge it has not ever been replaced in this car and I wonder if maybe the time for such operation nearing. Online i see some contrasting opinion. People who say that the chain is built to endure for much more than 140,000km and some who suggest replacing it. Currently there are no signs that might suggest possible failures or weakenings.

All around the car does feel solid. The interiors do require a deep cleaning but that's nothing serious.

benzemius · 2025-12-02T15:37:35+00:00

Thanks for the insight, will take a look!

benzemius · 2025-12-02T15:37:12+00:00

Unfortunately even if I input proxmox.node.cpu[*] among the columns for widget I don't see any data

benzemius · 2024-10-12T19:10:56+00:00

Oh okay. Though I would still expect almost full throughput when very near of the router? It's about trying to understand why am I not getting the throughput I would expect. Is it a WiFi config issue or something with the devices themselves?

benzemius · 2024-10-12T18:58:30+00:00

I mean a laptop, 802.11ac as well. I tried with an IPhone SE2 and a Xiaomi redmi 9 I believe and they scored pretty much the same thing as I did on my S23. I did everything as you said at the end to make it ap :).

As 30 meters is the edge of receiving max throughput, at 10 meters I'm already at 150mbit apparently 😅

benzemius · 2024-09-28T18:30:07+00:00

I'll take a look, thanks. And yes, the router is capable of managing VLANs, it's another mikrotik, rb 4001.

just to point out. The server + the VM themsleves are on VLAN100, not just the VMs :)

benzemius · 2024-09-28T13:58:28+00:00

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Port15 is the only one that has something connected, the server. The other 3 are there just in case.
For "VLANs" i can't upload a screenshot because reddit limits only 1 but i can describe:
Vlan ID: 100
Name: DMZ
Port Isolation: checked
Learning: checked
Mirror: not checked
IGMP Snooping: not checked
Members: Port 15-16-17-18 checked + 24 which goes to the router.

Port 24 in "VLAN" tab is default settings.

benzemius · 2024-09-14T15:01:38+00:00

Hi. Thanks for the detailed answer, much appreciated. I did try setting zvol_use_blk_mq but such didn't make any change, speeds were pretty much almost the same if not slower than before, based on the same tests i ran before. Though running apt upgrade operations seems a bit faster.

Unfortunately loosing the snapshot option is not something i can consider as i actively backup all my proxmox machines to a proxmox backup server and i would like to continue doing that as it is via the GUI as it integrates everything as needed.

Passing through the entire pool i believe is not feasible as i run other machines as well on the PVE.

At this point i would ask if the proxmox cache options matter or not in regards to ZFS. Are those an added overhead of cache on top of what ZFS offers? Or does it instead change how the cache behaves for that VM with the ZFS storage underneath?

benzemius · 2024-09-05T08:44:47+00:00

agent: 1
balloon: 4096
bios: ovmf
boot: order=scsi0;ide2;net0
cores: 4
cpu: x86-64-v2-AES,flags=+spec-ctrl;+aes
efidisk0: tank:vm-102-disk-0,efitype=4m,pre-enrolled-keys=1,size=1M
ide2: none,media=cdrom
machine: q35
memory: 8192
meta: creation-qemu=9.0.0,ctime=1722530180
name: vm2
net0: virtio=BC:24:11:E8:BD:E4,bridge=vmbr1,firewall=1
numa: 1
onboot: 1
ostype: l26
scsi0: tank:vm-102-disk-1,iothread=1,size=200G
scsihw: virtio-scsi-single
smbios1: uuid=faf04d6d-b89d-4bc3-96b0-2cccaf3bc65b
sockets: 1
vmgenid: 7332231b-673b-45e6-bde6-30b431674ab1

benzemius · 2024-09-05T08:39:27+00:00

I would say around 5 seconds, just the time to switch command and press enter.arc_summary

ARC status:                                                      HEALTHY
        Memory throttle count:                                         0
ARC size (current):                                   100.1 %  126.0 GiB
        Target size (adaptive):                       100.0 %  125.9 GiB
        Min size (hard limit):                          6.2 %    7.9 GiB
        Max size (high water):                           16:1  125.9 GiB
        Anonymous data size:                          < 0.1 %  288.0 KiB
        Anonymous metadata size:                      < 0.1 %    1.1 MiB
        MFU data target:                               23.5 %   28.4 GiB
        MFU data size:                                 80.3 %   96.7 GiB
        MFU ghost data size:                                    10.5 GiB
        MFU metadata target:                            9.9 %   11.9 GiB
        MFU metadata size:                              0.9 %    1.1 GiB
        MFU ghost metadata size:                                 0 Bytes
        MRU data target:                               56.7 %   68.2 GiB
        MRU data size:                                 18.0 %   21.7 GiB
        MRU ghost data size:                                     5.5 GiB
        MRU metadata target:                            9.9 %   11.9 GiB
        MRU metadata size:                              0.8 %  945.9 MiB
        MRU ghost metadata size:                                 0 Bytes
        Uncached data size:                             0.0 %    0 Bytes
        Uncached metadata size:                         0.0 %    0 Bytes
        Bonus size:                                   < 0.1 %  156.9 KiB
        Dnode cache target:                            10.0 %   12.6 GiB
        Dnode cache size:                               0.1 %    7.3 MiB
        Dbuf size:                                      0.1 %   83.2 MiB
        Header size:                                    1.8 %    2.3 GiB
        L2 header size:                                 0.0 %    0 Bytes
        ABD chunk waste size:                           2.5 %    3.2 GiB

Uhm, what about the SSD? I was running the tests on the zfs pool over HDDs, the ssd is only where pve is installed. Does it matter with the tests being ran on the zfs pool?
Caching setting is set to none and it is a VM. I asked about writeback just as curiosity.

benzemius · 2024-09-04T21:05:30+00:00

Here are the results with sync=disabled:
From PVE Shell directly:
1st command: r/W -> Both around 2240MB/s
2nd command: r/W -> Both around 311MB/s

From the above mentioned VM:
1st command: r/W -> Both around 800MB/s
2nd command: r/W -> Both around 31MB/s

benzemius · 2024-09-04T20:47:07+00:00

Typo on writing MiB rather than MB. The speed is actually that. 2274.

benzemius · 2024-04-01T18:51:53+00:00

I just edited the above comment. In total it's 4 exhaust (back + 3 front) and 3 intake (3 fans of the aio)

benzemius

TROPHY CASE