C-Class (W203) - MBWorld.org Forums

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adjustable, arms, bar, bushings, control, end, links, lube, lubricating, make, rear, squeak, squeaking, suspension, sway, tightening, w203

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Common suspension noises and solutions

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TruTaing on Aug 17, 2010

Mar 7, 2026 12:27 PM
by SilverSound4

345

712,134

bose, c230, c320, class, gti, krew, package, picture, premium, sf, side, skirts, subwoofer, vw, wagon

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Official C-Class Picture Thread

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Accord on Jan 31, 2002

Nov 12, 2025 05:48 PM
by FraserS203

7,017

4,477,045

18, 2005, 2008020002, c230, campaign, diagram, euro, kompressor, leak, m271, number, oil, recall, sunroof, tails

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M271 2003-2005 C230 guys go to the dealer now free work/recall

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linkmustang on Mar 10, 2008

Nov 6, 2025 01:06 PM
by Euroslammed

300

360,178

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Owners Manuals, Service Manuals, Etc.

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1 2)

Glyn M Ruck on Oct 30, 2010

Jan 11, 2025 11:56 AM
by Handygoober

47

242,660

2006, alternator, battery, c240, coupe, fiat, flapper, jetta, key, motor, recirculating, red, removing, reset, srs

Sticky

List of faults that occur after disconnecting battery...

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MB-BOB on Jul 27, 2005

Apr 18, 2024 04:32 PM
by tclark

199

990,610

2003, actuators, air, c32, change, cond, conditioner, evaporator, leaking, merzedes, motors, noisy, recharge, stepper, w203

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Noisy Air Conditioner ?? Stepper Motor Replacement / Clicking & Hissing

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TechSuperstar on Jan 9, 2007

Oct 2, 2023 09:22 PM
by slammer111

659

900,072

Sticky

W203 Technical Service Bulletins

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1 2 3 4)

vraa on Oct 3, 2005

Aug 27, 2020 09:46 AM
by StevenVN

86

318,399

Sticky

Inductively energised key, handshake & start process

Glyn M Ruck on Aug 21, 2011

Jun 27, 2019 02:39 PM
by Jhicks56

13

75,750

2002, 2005, 2008, benz, c230, guide, indicater, indicator, mb, mercedes, mercedesbenz, model, reset, service, world

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Latest Guide to Resetting the Service Indicator - most models

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1 2 3)

Glyn M Ruck on Jan 5, 2010

Feb 27, 2019 03:12 AM
by hEEk

74

343,287

2004, 22951, 272, c240, capacity, engine, filter, fleece, jaguar, level, mercedes, ml350, oem, oil, overfilled, spec, supplier, type

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Definitive Approved Engine Oil Requirements - USA

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Glyn M Ruck on Dec 11, 2008

Oct 23, 2018 11:56 AM
by Audi Junkie

110

243,263

basslink, battery, c300, cruznlv, discharge, exhaust, infinity, jeep, mercedes, pasad, philippines, schatz, tips, viseeo, wrangler

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MJ50's W203 Mod Fever (OEM Retrofits)

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MJ50 on Jan 5, 2004

Sep 12, 2017 01:26 PM
by MJ50

1,412

605,945

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MUST READ - To All W203 Owners/posters

drexappeal on Jan 31, 2008

Jan 31, 2008 01:47 PM
by drexappeal

0

89,795

2000, 2004, 230, aftermarket, air, c230, filter, interiors, kompressor, mercedes, mods, sedan, supercharger, w203, w204

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AFTERMARKET & OEM MODIFICATIONS / DIY - FAQ's

amdeutsch on May 21, 2005

Feb 12, 2007 03:22 PM
by drexappeal

1

269,475

Normal Threads

12, c230, carbon, exhaust, hose, line, lines, picture, remove, removing, vaccum, vacum, vacumm, vacuum, w203

how to remove vacuum line on m271

richiekie on Mar 24, 2011

Mar 29, 2026 07:56 AM
by mikekilo

8

11,918

2005, air, altitude, c230, diy, intake, kompressor, location, m271, maf, mercedes, removal, removing, sensor, w203

DIY: M271 MAF replacement

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1 2 3)

scottyballz on Aug 20, 2007

Mar 29, 2026 06:12 AM
by mikekilo

69

139,354

DIY: Gear Shifter Assembly Replacement

slammer111 on May 4, 2025

Mar 27, 2026 05:32 PM
by REX0000

12

2,631

P0410 Air Injection valve

ncmudbug on Mar 22, 2026

Mar 24, 2026 11:15 AM
by ncmudbug

4

127

Botched (radiator? condenser?) hose routing? Is this normal??

blacknova2 on Nov 2, 2025

Mar 22, 2026 08:37 PM
by blacknova2

23

1,363

02, 2002, 2005, automatic, c230, drive, getrag, kompressor, manual, mercedes, model, oof, shift, stick, transmission

c230 kompressor auto or stick?

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1 2)

c230bbslm on Dec 10, 2004

Mar 22, 2026 03:31 PM
by ncmudbug

43

12,691

220cdi, 504, c230, car, crank, cranking, distribution, earthing, ecu, esl, front, peugeot, remove, stalling, start, turnover, w203, wont

W203 Doesn't start/does not crank

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1 2 3)

W203AL on Jan 12, 2014

Mar 22, 2026 12:13 AM
by mb_drewski

64

229,779

Exploding Sunroof! - Safety Recall Mercedes Fixed For Free

KILLERHERTZ on Mar 18, 2026

Mar 18, 2026 07:27 AM
by KILLERHERTZ

0

191

M278 Left Bank Cylinder Head/Valve Cover Removal

brianwill on Mar 16, 2026

Mar 16, 2026 04:54 PM
by brianwill

0

109

New timing chain tensioner

Nostradamus001 on Mar 14, 2026

Mar 15, 2026 04:24 PM
by Nostradamus001

5

203

Balancing Shaft timing marks?

Dave321 on Nov 7, 2015

Mar 15, 2026 08:33 AM
by paul timms

3

30,851

Question about 2 engine screw-holes

tudorub2105 on Mar 13, 2026

Mar 13, 2026 10:33 AM
by tudorub2105

0

78

Dashboard + Cluster not working on a jumpstarted W203 2003 wagon

tudorub2105 on Feb 3, 2026

Mar 13, 2026 10:13 AM
by tudorub2105

5

345

Front sam module issue fixed

authenticbuilds on Nov 22, 2019

Mar 10, 2026 04:17 AM
by Kevosc240merc

2

8,359

C230 Coupe Reverse Light Improvment?

nlinesk8s on Jan 15, 2021

Mar 8, 2026 06:24 PM
by SCFNH

18

1,800

2005, 320, carrera, cclass, change, clk, cover, gasket, m271, plugs, replacing, review, rmeuropean, spark, sparkplug, valve

Spark Plug Replacement - M271

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1 2 3)

laurier on Apr 3, 2009

Mar 7, 2026 01:34 PM
by SilverSound4

73

76,525

breather, c230, delete, eaton, egr, hose, intake, kompressor, m271, mercedes, muffler, p0410, removal, resonator, silencer, supercharger

M271 (1.8L) Supercharger Intake Resonator (baffled muffler) removal

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Ogpogo on Jul 30, 2007

Mar 7, 2026 01:28 PM
by SilverSound4

169

269,555

How many C coupes are still here?

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C230 Sport Coup on Apr 2, 2020

Mar 7, 2026 01:08 PM
by SilverSound4

117

22,013

What could cause this M271 bouncing rpm at idle?

dbclc123 on Nov 4, 2024

Mar 7, 2026 01:05 PM
by SilverSound4

12

2,168

2003, 2007, benz, bra, c230, common, coupe, fix, fog, fogging, headlight, mercedes, prblems, replacing, sport

Looking to buy a C230 Coupe, Headlight damage question, and what other problems?

JMon on Nov 16, 2007

Mar 7, 2026 01:02 PM
by SilverSound4

11

1,527

Rear Diff

Rallo13b on Mar 7, 2026

Mar 7, 2026 12:49 PM
by Rallo13b

0

121

w203 randomly ****s off out of nowhere

plebeus89 on Mar 1, 2026

Mar 6, 2026 04:52 AM
by plebeus89

8

276

Oil Leaking From Black Covers On Timing Guide Bolts

Pro-Trad on Mar 3, 2026

Mar 5, 2026 09:49 AM
by Pro-Trad

2

170

Need help identifying two lines that run under car?

Pro-Trad on Feb 28, 2026

Mar 1, 2026 08:38 AM
by Pro-Trad

6

228

CL-Fault possible causes

an6dk on Feb 27, 2026

Feb 28, 2026 12:53 AM
by an6dk

2

178

amg, bi, c32, car, diamond, gatos, headlamps, hid, high, lights, location, los, mercedes, monterey, photo, photoshoot, pole, school, shoot, xenon

Los Gatos Photoshoot w/ a few from Monterey

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1 2 3 4)

C230 Sport Coup on Sep 23, 2008

Feb 26, 2026 05:46 PM
by dmarciano

88

29,797

When picking up my car from service....

tb2 on Jun 27, 2002

Feb 24, 2026 11:47 PM
by C230 Sport Coup

16

1,558

12, 203, 56, 820, aim, air, compressed, diy, fog, foglight, led, low, retrofit, retrofitting, w203, w211

DIY: Clear Fog Light Retrofit / Transplant

slammer111 on May 20, 2011

Feb 20, 2026 10:45 PM
by C230 Sport Coup

15

12,692

Intermittent No-Crank/No-Start W203 M271 - TCM Gear Mismatch? (Terminal 50 stays OFF)

letiridumed on Feb 15, 2026

Feb 15, 2026 05:05 PM
by letiridumed

0

122

2006 - C180 Kompressor - Aceleration Loss

Jazzmatazz on Feb 7, 2026

Feb 10, 2026 03:06 PM
by C230 Sport Coup

4

159

The Forgotten AMG: "CL203 XX AMG" 3-Year Journey to Fulfillment❗️

XX_Project on Feb 6, 2026

Feb 10, 2026 02:57 PM
by C230 Sport Coup

4

643

Bigger injector installation on m111 engine

ntinosath on Dec 4, 2025

Feb 9, 2026 01:03 PM
by ziigen

23

1,665

The Forgotten AMG: "CL203 XX AMG" 3-Year Journey to Fulfillment❗️

XX_Project on Feb 6, 2026

Feb 6, 2026 11:39 AM
by XX_Project

0

174

2005, 2005c230, 2006, benz, c230, check, code, engine, light, mercedes, number, oem, p0456, po456, purge, valve

OEM code P0456 - 2005 C230

crissikitty on Apr 27, 2011

Feb 6, 2026 02:54 AM
by C230 Sport Coup

24

60,778

External Transmission Cooler..??

ammar_rage on Aug 14, 2014

Feb 1, 2026 10:29 PM
by younameit33

10

5,666

2004 C320 Gateway Location

ka0t1c07 on Jan 28, 2026

Jan 28, 2026 07:27 PM
by ka0t1c07

0

120

05 C230 Coupe supercharger performance fault

BenzOvich on Jan 26, 2026

Jan 27, 2026 12:57 PM
by C230 Sport Coup

2

337

2005 c55 amg that rear sunshade is stuck up. it’s been replaced in the past by dealer

Bigmak42 on Jan 26, 2026

Jan 26, 2026 05:01 PM
by KevinH2000

1

456

W203 Faulty Headlamp / Need Opinion on Ballast

simaosrcm on Jan 24, 2026

Jan 25, 2026 01:55 AM
by smgak

1

449

05 C240 4Matic Sedan Rear Sagging

SCFNH on Jan 22, 2026

Jan 24, 2026 03:07 AM
by 112233

2

476

2003, 2005, 3, c230, engine, flush, fording, intervals, kit, m271, mercedes, reset, service, times, w203, w460, water

How many miles or kms have you clocked your W203 ?

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boytoys on Sep 5, 2005

Jan 23, 2026 06:40 PM
by C230 Sport Coup

620

145,680

Help me

dadavid1 on Jan 22, 2026

Jan 23, 2026 03:33 AM
by C230 Sport Coup

1

215

What have you done to your CL203 Sport Coup recently?

C230 Sport Coup on Jan 20, 2026

Jan 20, 2026 05:26 PM
by C230 Sport Coup

2

477

Supercharger oil change

garyc230 on Jan 17, 2026

Jan 20, 2026 06:41 AM
by 112233

3

633

Detached hood release cable

Alamberton on Jan 19, 2026

Jan 19, 2026 11:37 PM
by C230 Sport Coup

2

438

Power steering pump drama. Quieter replacement advice 2006 C200 Kompressor

Rcb82 on Dec 21, 2025

Jan 17, 2026 12:15 PM
by letiridumed

1

830

35, 4044024490, black, boned, dots, gs300, lexus, percentage, pewter, tint, tinted, tinting, w203, window, windows

Poll

Tinted Windows W203 Thread - All You want to know about window tinting a C Class

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Pete on Nov 30, 2001

Jan 16, 2026 03:15 PM
by smgak

1,652

326,634

2002 Coupe EGT sensor

ahcoraj on Jan 13, 2026

Jan 14, 2026 01:57 AM
by C230 Sport Coup

2

352

Star Grill for a 2005 C240

SCFNH on Dec 29, 2025

Jan 9, 2026 08:36 PM
by KevinH2000

4

466

W203 Won’t Start, TCM/EGS Not Detected, Automatic Gear Lever Locked in P

Averoesh on Jan 2, 2026

Jan 3, 2026 12:43 PM
by C230 Sport Coup

2

741