What 17" Merc Wheels

Post by **jez2020** » 30 Jan 2012, 22:02

Hi all, can anyone help ive actually got a set of boxter s porsche twist cups that i was going to fit but to be honest im searching for an easier option, can anyone tell me what 17" alloys maybe merc will fit straight on with no messing around so i can source a set and just bolt them on,
Thanks JEZ t25 autohomes Komet 1990 , ps im new to the site so i understand i might not have posted this in the right section, sos

Post by **kevtherev** » 30 Jan 2012, 23:05

try the wheels and tyres forum...in the technical forum

welcome to 80-90

Post by **jez2020** » 02 Feb 2012, 00:23

Thanks mate, i have had a look there but i think i may need to take more time and study it to work out what my best option is,thanks alot for the welcome its a really handy site.

Post by **andisnewsyncro** » 02 Feb 2012, 08:56

Nothing but original Carart alloys (14") will bolt straight on I'm afraid. At least you'll need longer studs / bolts to safely fit any other alloys due to the extra thickness of the rims themselves. As Kev said, have a good look through this section and read the Wiki - link at the top of every page - for more info. Loads on Brickyard too about wheels and what's needed for various options.

Post by **serenitycamper** » 02 Feb 2012, 20:00

Sorry that's incorrect. The c class 5 spokes fit straight on with no modification and you can install the centre caps without fouling the caps.

Swap you for the twists????!!!

Post by **billybigspud** » 02 Feb 2012, 20:12

you done a photoshop of that yet?

Post by **serenitycamper** » 02 Feb 2012, 20:19

Of my van?

Post by **andisnewsyncro** » 02 Feb 2012, 20:51

signaturecustoms wrote:Sorry that's incorrect. The c class 5 spokes fit straight on with no modification and you can install the centre caps without fouling the caps.

I disagree, you need extended bolts with C class wheels, but original Carats will fit with no change whatsoever...

If you have C class alloys on steel fittings, stop driving and swap the studs / bolts now !

Post by **billybigspud** » 02 Feb 2012, 21:29

Yeah, sat as low over them wheels as ytou can get? I am just being nosey.

Post by **andisnewsyncro** » 03 Feb 2012, 01:08

Those look like car tyres in the photo too .........

Post by **serenitycamper** » 03 Feb 2012, 08:30

They're extra load tyres on the back and whatever try came with on the front as the van ain't movin at the moment!

With regard to the fitment, they go straight on with the merc beveled head nuts and bolts. The studs are fine lengthwise and there's certainly no problem with them. Not that it matters as I'm buying a full spacer kit with studs and bolts anyway as they sit a little too far under the arch for me.

A very bad photoshop, but I haven't had the time to sort it out yet!

Post by **g60steve** » 03 Feb 2012, 14:15

signaturecustoms wrote: they go straight on with the merc beveled head nuts and bolts. The studs are fine lengthwise and there's certainly no problem with them. Not that it matters as I'm buying a full spacer kit with studs and bolts anyway as they sit a little too far under the arch for me.

That's a perfect example why people constantly get confused when they see people saying a set of alloys "fits straight on" .

If they did fit straight on there would be no need for longer bolts,studs and spacers.

There's just a handful of alloys that do fit straight on safely with no need for longer bolts,studs and spacers and 17" Mercedes alloys aren't one of them.

Remember by fitting alloys with standard length studs and bolts you lose at least 10mm of thread due to the thickness of the alloy...hence why longer studs and bolts are required to compensate for the thickness of the alloys.

The OE Carat alloys aren't affected by this because they use a taper seated bolt/nut which allows the nuts/bolts to sit deeper into the alloy thus regaining the required thread length.

Post by **serenitycamper** » 03 Feb 2012, 14:37

But the bolt seats on these wheels are recessed and tapered! Ive got two threads protruding from my rear studs after the bolt heads. if they were any longer they'd be hangin out of the bolt hole!

Post by **g60steve** » 03 Feb 2012, 14:45

signaturecustoms wrote:But the bolt seats on these wheels are recessed and tapered! Ive got two threads protruding from my rear studs after the bolt heads. if they were any longer they'd be hangin out of the bolt hole!

Mercedes wheels are radius seated...not tapered.
Example:
http://www.brick-yard.co.uk/VehicleSpec ... ltwhls.htm" onclick="window.open(this.href);return false;

Some bolt holes on aftermarket Mercedes wheels are as much as 25mm thicker compared to a T25 steel wheel.

Has your van already got longer rear studs fitted...it certainly sounds that way?

Post by **Ian Hulley** » 03 Feb 2012, 14:50

signaturecustoms wrote:

That photograph's a classic example of "fir coat and no knickers".

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