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I was wondering if there was a way of finding out how much my car is depreciating each month, short of ringing a dealer every month and asking fora new quote... I was looking to downsize this month (sorry guys, Mercedes ownership is just taking its toll on me and the missus and I are looking to...

Oh well. Figured there was some other cleverness going on. Thanks guys!

W221 s320. I was wondering if there was a way to get the system to show the actual pressure of the tyres, instead of just saying "check tyre pressure". Surely it's measuring the pressure somehow, as it knows when it's low... Or is it doing some other fancy tricks to figure it out?

Nailed it, that's exactly what it was - thanks! Been so long since I changed phones and re-paired with the car...

For my old Windows Phone 8 device, I ended up buying an MB HFP Bluetooth adaptor (https://www.commandonline.co.uk/Mercedes_Bluetooth_HFP.html) and that worked fine - although I didn't have access to the SMS function (not really an issue, I'm not going to be sending a text while driving, even if...

I have a multimeter sitting around somewhere, can you give me an overview of how I should go about testing them?

Last Friday I noticed when I left the office that the glow plug warning light on my dashboard stayed on for a bit when I turned the engine on. After about 5-10 minutes, it went out again. It's been like this every day when I start the engine after it's been allowed to go cold. While the light is...

I could, I guess? I'm not exactly "handy", I don't know what bonding agent I'm looking for. I've been in touch with the valeting company and waiting for them to get back to me, I'm informed they're normally pretty good about righting wrongs... Regarding video to gif, I used imgur.com's feature...

I had my car valeted yesterday at work and when I left the office I noticed that the trim on the cover for the cup holders was loose. I jiggled it a little but it wouldn't go on properly and because of the way it was sitting, the cover wouldn't lock down properly. It looks like there should be a...

Here's a weird one... I've noticed that when I get to the "reserve fuel" level, my car's engine (well, probably exhaust actually) note sounds different. It's a fair bit bassier around 900-1000RPM. When I fill her up again, she sounds normal again. Maybe the way the emptier, lighter fuel tank...

Could be. When I get home I'll fire up the OBD2 and see if anything's lingering.

2009. I went out at lunch to take it to Mercedes, but when I started driving down the road all seemed fine. Full revs, full power... no lights on the dash. So it looks like it's clear. Seems it was a precautionary measure by the engine after picking up on something? Maybe dirty fuel? I did...

Hey folks, Last night, my car was perfectly fine. This morning while leaving the house I noticed the car felt a bit sluggish, and as the journey went on, some things became apparent: 1) The car won't rev above 3000 2) When going uphill, I can sometimes change down to help me, but...

Thanks. I guess I'll find out when I ring them next week. How much, roughly, do you think it would be?

Well, I've had my W221 for a couple of months and now the messages are telling me that "Next service B" is due in 20 days. How do I work out what this is? All I know is that B is the second shortest service interval (unless I have it backwards). In my BMW 520D (which was 3 years older than this...

Problem with that is then you switch off the rear ones too... not very handy when parking! Though definitely a bonus if the front ones keep going off in start/stop traffic. Could toggle them on/off as needed, I guess. Your point about them needing to be kept clean is pretty much on the head. In...

I've heard a lot about people getting better fuel economy AND increased performance from diesel engines after a remap. I guess making the fuel mixture more air-rich will definitely decrease the fuel use - I'm no engine expert though, and I'm not sure how that would equate to a power increase...

update: check light cleared by itself this morning. Haven't scanned for fault codes with obd2 yet but will do later

Hey guys, W221 here. My OBD2 whatchmacallit arrived today, which turned out to be good timing... After leaving the office and getting into my car, and turning it on, I realised I'd left something behind. So I turned the engine off and was about to get out of the car when I decided I'd just...

I got annoyed at it yesterday morning, hit the dash unit a whack... there was a loud click and suddenly the rattle is gone...