Clicking front wheels w204 C63

[Carbonman]

Its possible that the metal back plate is slightly corroded and bent in towards the brake disc and is catching it during rotation. Try pushing the back plate away from the disc. Hope this is a helpful suggestion.

 

[TTManUK]

How funny, I've got this same issue on my C63 at the moment, and have just finished replacing the front driver wheel bearing - literally just finished, the caliper is not back on yet - I'll let you know if this fixed the issue. I previously replaced the bearing on the other side, it was making horrible noises when driving but showed no other signs of failure, no play at 3-9 or 12-6 and no grinding, so dont necessarily discount the bearing

Finished the job and took the car for a drive, problem solved. They are £204 from Mercedes. I can hear my passenger side starting to go too - are your aftermarket wheels a wider fitment per chance?

 

[OneForTheRoad]

Do they click in reverse?

 

[PPPBrad]

Wild shot:- as it only happens when the car is rolling, might it be the prop shaft? Either a worn joint or perhaps the standard solution to strange noises on the move, the parking brake cable hitting it?

I’ve seen this mentioned about the parking brake cable hitting. Surely this wouldn’t happen on the front wheels?

 

[PPPBrad]

Finished the job and took the car for a drive, problem solved. They are £204 from Mercedes. I can hear my passenger side starting to go too - are your aftermarket wheels a wider fitment per chance?

Awesome!! Was it a simple enough job to do? I’ve watched a YouTube video and the bottom bolt at the back looks like a nightmare to remove??

 

[PPPBrad]

Do they click in reverse?

Yes

 

[TTManUK]

Awesome!! Was it a simple enough job to do? I’ve watched a YouTube video and the bottom bolt at the back looks like a nightmare to remove??

You don't need to undo the knuckle to tilt the assembly if you have the right tools. A small E12 (ideally swan neck) will get the 4 hub bolts off in situ. I used the spanner in this set and got them off relatively easy, even though 2 of the 4 bolts are recessed

Halfords 4 piece Star Spanner Set | Halfords UK

Shop the latest The Halfords 4 piece Star Spanner Set is made for star or Torx fasteners, typically found on cars. at Halfords UK

www.halfords.com

Other than that it's just 2 21mm caliper bolts and the disc retaining screw, couldn't be much easier. You didn't say if you have wider wheels? I do, and having done this job twice now I don't think the standard bearings hold up well with wider wheels

 

[PPPBrad]

You don't need to undo the knuckle to tilt the assembly if you have the right tools. A small E12 (ideally swan neck) will get the 4 hub bolts off in situ. I used the spanner in this set and got them off relatively easy, even though 2 of the 4 bolts are recessed

Halfords 4 piece Star Spanner Set | Halfords UK

Shop the latest The Halfords 4 piece Star Spanner Set is made for star or Torx fasteners, typically found on cars. at Halfords UK

www.halfords.com

Other than that it's just 2 21mm caliper bolts and the disc retaining screw, couldn't be much easier. You didn't say if you have wider wheels? I do, and having done this job twice now I don't think the standard bearings hold up well with wider wheels

Thanks very much, that’s reassuring!

You wouldn’t have the part numbers for the front wheel bearing assemblies would you? Is it the same for both sides?

It’s only the rear wheels which are slightly wider. The fronts are the same as the originals.

 

[TTManUK]

I believe it's the same for both sides, I fit part number A2043300525, double check with the dealer as mine is a pre facelift, I'm not sure if there was any revisions of the part for the facelift but I don't think so.

Interesting you are running standard width wheels at the front, that dismisses my initial theory! Make sure you report back with your results, hope this helps

 

[Bobby Dazzler]

Thanks very much, that’s reassuring!

You wouldn’t have the part numbers for the front wheel bearing assemblies would you? Is it the same for both sides?

It’s only the rear wheels which are slightly wider. The fronts are the same as the originals.

How about the offset? Any spacers?

 

[PPPBrad]

How about the offset? Any spacers?

I believe it's the same for both sides, I fit part number A2043300525, double check with the dealer as mine is a pre facelift, I'm not sure if there was any revisions of the part for the facelift but I don't think so.

Interesting you are running standard width wheels at the front, that dismisses my initial theory! Make sure you report back with your results, hope this helps

This is the bolt the guy struggled with on YouTube. Think it took him 3.5 hours!!

Thanks for the part number. I will check it out.

 

[PPPBrad]

How about the offset? Any spacers?

No spacers and the specification for them is
19 x 8.5 ET45 & 19 x 9.5 ET48

 

[TTManUK]

This is the bolt the guy struggled with on YouTube. Think it took him 3.5 hours!!

Thanks for the part number. I will check it out.

On mine the bolt head protrudes enough to get a spanner on it. You wont get in with a ratchet without the disassembly he does.

I thought the standard wheels were 8J front 9J rear, I'm running the same sizes as you - I expect the same wheels, from CM Wheels by any chance?

 

[PPPBrad]

On mine the bolt head protrudes enough to get a spanner on it. You wont get in with a ratchet without the disassembly he does.

I thought the standard wheels were 8J front 9K rear, I'm running the same sizes as you - I expect the same wheels, from CM Wheels by any chance?

Yes, from CM Wheels. We must have the same!

I’ve been pleased with them. I can’t see how they could be to blame for wearing out the bearings, but you never know.

Are you on Instagram? I’ve got a video of the clicking which I could send you. Be interesting to know if it’s exactly the same.

My Instagram name is bradarmstr0ng… the o is a zero!!