These are Mercedes-approved wheel sizes for W209 CLK320. Copied from Owner's Manual book
Front axle
Summer tyres: 225/45 R17 91W
Light-Alloy Wheel: 7 1/2Jx17 H2 ET36
Rear axle
Summer tyres: 245/40 R17 91W
Light-Alloy Wheel: 8 1/2Jx17 H2 ET30
Both axles
Winter tyres: 225/45 R17 91H M+S
Light-Alloy Wheel: 7 1/2Jx17 H2 ET36
AMG Equipment:
Front: 225/45 R17 91W; 7 1/2Jx17 H2 ET37
Rear: 245/40 R17 91W; 8 1/2Jx17 H2 ET30
W is speed index for up to 270 km/h
H is speed index for up to 210 km/h
T - up to 190 km/h
V - 240
Y - 300
ZR - more than 240
another opinion 1:
common sizes : 18x8.5 235/40 front, 18x9.5 265/35 rear
another opinion 2:
18'': 225/40 front, 255/35 rear
recommended by some online shop:
225/40R18 front, 255/35R18 rear
Front alloy wheels: 18x7.5" ET37
Wheel part number: AMG B66031377
Additional alloy part number: A2094001002
tyres: 225/40R18 92Y XL
Rear alloy wheels: 18x8.5" ET30
Wheel part number: AMG B66031362
Additional alloy part number: A2094000502
tyres: 245/35R18 92Y XL
Front alloy wheels: 18x7.5" ET36
Wheel part number: MER B66474516
Additional alloy part number: A2034015502
Rear alloy wheels: 18x8.5" ET30
Wheel part number: MER B66474517
Additional alloy part number: A2034015602
DUNLOP SP SPORT MAXX
front: 225/40R18 92Y RF £112
rear: 255/35R18 94Y RF £161
Total: £548
copied from here:
car type CLK Class (A/C209)
front/front&rear rear only Approved by Notes
size offset tyre size offset tyre
16x7 37 205/55R16 Mercedes-Benz
16x7 37 205/55R16 16x8 32 225/50R16 Mercedes-Benz
17x7.5 36 225/45R17 Mercedes-Benz
17x7.5 36 225/45R17 17x8.5 30 245/40R17 Mercedes-Benz
17x7.5 37 225/45R17 AMG
17x7.5 37 225/45R17 17x8.5 30 245/40R17 AMG
17x7.5 37 225/45R17 17x8.5 34 245/40R17 AMG
17x8 30 225/45R17 17x8 30 225/45R17 Brabus
17x8 30 225/45R17 17x8 30 245/40R17 Brabus
17x8.5 30 225/45R17 17x8.5 30 225/45R17 Brabus
18x7.5 37 225/40R18 AMG
18x7.5 37 225/40R18 18x8.5 30 255/35R18 AMG
18x8.5 30 225/40R18 18x9.5 18 255/35R18 AMG
18x8.5 30 225/40R18 18x8.5 30 225/40R18 Brabus
18x8.5 30 225/40R18 18x8.5 30 255/35R18 Brabus
18x8.5 30 225/40R18 18x8.5 30 245/35R18 Brabus
18x8.5 30 225/40R18 18x9.5 35 255/35R18 Brabus
18x8.5 28 225/40R18 Carlsson
18x8.5 28 225/40R18 18x8.5 28 255/35R18 Carlsson
18x8.5 28 225/40R18 18x10 30 255/35R18 Carlsson RA: 1, 4, 9, 11
18x8.5 28 225/40R18 18x10 29 255/35R18 Carlsson RA: 1, 4, 9, 11
19x8.5 29 235/35R19 19x8.5 29 235/35R19 Brabus
19x8.5 29 235/35R19 19x9.5 35 265/30R19 Brabus
19x8.5 29 235/35R19 19x9.5 35 255/30R19 Brabus
19x8.5 29 235/35R19 19x10 35 265/30R19 Brabus
19x8.5 29 235/35R19 19x10 35 255/30R19 Brabus
19x8.5 28 235/35R19 Carlsson
19x8.5 28 235/35R19 19x10 29 265/30R19 Carlsson RA: 1, 4, 9, 11
Key to notes (FA=front, RA=rear)
• FA1 Bend in and flare the wheelarches
• FA2 Steering limiter required
• FA3 Plastic wheelarch liners require work
• FA4 Flare the wheelarches
• FA5 Front section of wheelarch requires work
• FA6 Replace the plastic wheelarch liner bolts with self-tapping bolts
• FA7 Cut the front plastic wheelarch liners in front of the wheel at full lock
• FA8 Seal the exposed bodywork surfaces
• FA9 Limit steering lock to 15mm at steering mechanism
• FA10 Flare the wheelarches with additional bracing
• FA11 Grind the wheelarches in the housing
• FA12 Plastic wheelarch liners require work (1)
• FA13 Plastic wheelarch liners require work (2)
• FA14 Install 12mm bump limiter - not for code 486/489
• 18 Speedometer recalibration
• RA1 Bend in the rear wheelarch lips
• RA2 Flare the bumper
• RA3 Plastic wheelarch liners require work - seal exposed surfaces
• RA4 Bumper requires work in the rear area of the wheel housing
• RA5 Flanks require work
• RA6 Remove the plastic wheelarch liners
• RA7 Extend the inner wheelhouse to the outer shell
• RA8 Seal the wheel housing
• RA9 Corners of the bumper require work in the area of the bumper
• RA10 Flare the wheelarches
• RA11 Bend the wheelarch lips upwards
• RA12 Plastic wheelarch liners require work in the area of the bumper attachment
• RA13 Wheelarch liner requires work in the area of the damper
• RA14 Paint if necessary
found more or less suitable on http://www.performancealloys.com/Wheels-By-Size-Results.aspx?sizeID=44:
no info on offsets though yet - will need to trim down this list based on available offsets
Dezent Type U. Sizes Available: 15x6, 16x6, 16x7.5, 17x7.5, 17x8.5
Lenso BSX Black. Sizes Available: 15x7, 16x7.5, 16x9, 17x7.5, 17x8.5
Rota Slipstream Black. Sizes Available: 15x6.5, 15x7, 15x8, 16x7, 16x8, 17x7.5, 17x8, 17x8.5
Rota Slipstream Gunmetal. Sizes Available: 15x6.5, 15x7, 16x7, 16x8, 17x7.5, 17x8, 17x8.5
Rota GRA Gunmetal. Sizes Available: 17x7.5, 18x7.5, 18x8.5
Rota D1 Silver. Sizes Available: 17x7.5, 17x8.5
OZ Racing Alleggerita Titanium 5FSizes Available: 16x7, 17x7, 17x7.5, 17x8, 17x8.5, 18x10, 18x11, 18x12, 18x7, 18x7.5, 18x8, 18x8.5, 18x9, 18x9.5
BBS CH SilverSizes Available: 17x7.5, 17x8.5, 18x10, 18x8, 18x8.5, 19x10, 19x8, 19x8.5, 19x9.5, 20x8.5, 20x9.5
OZ Racing Alleggerita HLT MBSizes Available: 16x7, 17x7, 17x7.5, 17x8, 17x8.5, 18x10, 18x11, 18x12, 18x7, 18x7.5, 18x8, 18x8.5, 18x9, 18x9.5
OZ Racing Alleggerita HLT TitaniumSizes Available: 16x7, 17x7, 17x7.5, 17x8, 17x8.5, 18x10, 18x11, 18x12, 18x7, 18x7.5, 18x8, 18x8.5, 18x9, 18x9.5
Enkei RPF1 SilverSizes Available: 14x7, 15x7, 16x7, 16x8, 17x10, 17x7, 17x7.5, 17x8, 17x8.5, 17x9, 17x9.5, 18x10.5, 18x7.5, 18x8, 18x8.5, 18x9, 18x9.5, 19x10
Enkei PF01Sizes Available: 15x7, 15x8, 16x7, 17x7, 17x7.5, 17x8, 17x8.5, 17x9, 18x10.5, 18x7.5, 18x8, 18x8.5, 18x9, 18x9.5
Enkei NT03+M SilverSizes Available: 17x7.5, 18x10, 18x10.5, 18x7.5, 18x8, 18x8.5, 18x9.5
Enkei PF01 BlackSizes Available: 15x7, 15x8, 16x7, 17x7, 17x7.5, 17x8, 17x8.5, 17x9, 18x10.5, 18x7.5, 18x8, 18x8.5, 18x9, 18x9.5
Enkei GTC 01Sizes Available: 17x7, 17x7.5, 17x8, 17x8.5, 17x9, 17x9.5, 18x10, 18x7.5, 18x8, 18x8.5, 18x9, 18x9.5, 19x10, 19x8.5, 19x9, 19x9.5
from http://www.rimstock.co.uk/page.php?identity=fitment-guide:
Vehicle Colour:
OE Tyre: 205/55R16
OE Rim: 7 x 16
OE Offset: 37
|
7.5 x 17 | 225/45R17 215/45R17 205/50R17 |
EQUINOX |
|
9 x 17 Rear | 245/40R17 255/40R17 |
PRO RACE 1.2 |
|
8 x 18 | 225/40R18 |
ARNAGE |
EQUINOX |
IMOLA |
MESH 3 |
PRO RACE 1.2 |
|
8.5 x 18 Rear | 255/35R18 245/35R18 |
LEMANS |
PRO RACE 1.3 |
|
8.5 x 18 | 225/40R18 |
LEMANS |
PRO RACE 1.3 |
|
9 x 18 Rear | 255/35R18 245/35R18 |
EQUINOX |
PRO RACE 1.2 |
|
8.5 x 19 Rear | 255/30R19 265/30R19 |
EQUINOX II |
IMOLA |
JADE R |
LEMANS |
MESH 3 |
PRO RACE 1.3 |
SAVAGE |
|
8.5 x 19 | 225/35R19 235/35R19 |
EQUINOX II |
IMOLA |
JADE R |
LEMANS |
MESH 3 |
PRO RACE 1.3 |
SAVAGE |
|
9.5 x 19 Rear | 255/30R19 265/30R19 |
EQUINOX II |
|
10 x 19 Rear | 265/35R19 285/35R19 |
JADE R |
|
8.5 x 20 | 235/25R20 |
EQUINOX II |
|
9 x 20 Rear | 265/25R20 275/25R20 |
PRO RACE 1.3 |
|
9.5 x 20 Rear | 265/25R20 275/25R20 |
EQUINOX II |