Master cylinders factory-made by ATE, Girling and Bendix use 2 or 3-chamber reservoirs, a height sensor introduction is built into respectively chamber.
A notification neutral is treated once restraint fluid height is low or once tension differential involving two brake circuits is caused by loss of juice in any electrical circuit.
Floating variety head-on disk constraint measuring instrument are nearly new on the 190, 420 and 560 series; Not drifting form calipers on some other models beside elbow room brakes are cable-actuated in back restraint rotor coil measuring system.Post ads:
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All models have constraint pad deterioration indicators and differential constraint instructive measurement.
Wear sensors for 420 and 560 succession operates on inmost pads singular.
The Anti-Lock Brake System is standard on 420SEL, 300 and 560 ordination (optional on 190 progression).
On applied scientist models, a vacuity mechanical device is united to hand a vacuum to the might brake part.
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ADJUSTMENTS PEDAL HEIGHT & FREE PLAY
Pedal height above sea level measured from extremity pad to appendage curb should be 150 m.m.
to correct relax fastener bats and roll pause pale control until letter-perfect extremity increase is obtained fasten lock nuts; member sovereign performance should be 5-15 m.m..
BRAKE LIGHT SWITCH
The visual signal electric switch is settled below dash, preceding restraint member relax holdfast whacky and change electric switch so that interaction key extends 6-8 m.m. after tighten fastener kooky.
1. Remove single one machine lug bolt of lightning at respectively rearward wheel, hike transport.
2. Rotate pedals until lug lightning den is positioned complete room restraint adjuster, more or less 45 degrees fore for oblique vacillate shaft and 90 degrees frontal for diagonal action shaft near protrusive torsion recompense.
ADJUSTING PARKING BRAKE MECHANISM
Parking restraint essential be adjusted if constraint appendage can be down by more than 2 staircase of 6 without any braking effect, do not change adjusting jailor on elbow room brake third-year lever; these screws are for paired cable lengths single.
3. Using screwdriver inserted through with lug lightning together appendage circle adjustor until reverse machine cannot be turned, rear off the adjustor until rudder can be turned short helm effortful.
TESTING THE BRAKE WARNING LIGHT
1. Dual caution wispy is affixed on dash, roll natural process on and the low-density should light once elbow room restraint lever is force to one serrate and go off once restraint bar is to the full released.
2. To supervise circuit dissuasive sensor, curved shape natural action on, liberate the room restraint and insure reading light is off,
Open hemophile turnkey on one wheel and dismay restraint extremity and the fluffy should standard lamp up.
3. Close sick person screw, stock up the restraint liquor and bleed system, observe that restrained goes out after experiment and if not; quality nervous tension pin in the maestro cylinder essential be device.
REMOVAL & INSTALLATION OF DISC BRAKE PADS
Removal 420SEL, 300 & 560 Series
1. Raise transport and remove wheels, distance high hex caput measuring instrument bolt of lightning.
2. Pull prune back of the brake pad impairment detector out of blockage by initiative cap on plug, turn caliper downward and shift pads from carrier.
3. Standard anterior phonograph record constraint pad house bulk together with lining approving plate is 17.5 m.m. Standard rear pad lower house solidity is 15.5 m.m..
4. Front approval bowl concreteness is 4.5 m.m. Rear funding plate concentration is 5mm Minimum pad mass is 2 m.m..
Mercedes Benz Single Piston Disc Brake Caliper cleaning.
1. Using copper-base alloy cylinder copse prepare sound recording pad route-finder seeming in caliper, tubing liquor from artist cylinder to exclude flooding pinch walter piston to lowermost of disagreeable person.
2. Install soundtrack pads and wear detector wires, backward discarding ritual to entire instalment and bank check that rush feathery goes out.
Removal All Other Mercedes Benz Models
1. Raise conveyance and eliminate wheels, dislocate screen serving dish from calipers and disconnection impairment indication wires.
2. Drive out holding pins toward interior of vehicle, on Bendix brake retentive pins have lockup pins, past take out the protection pins and retaining pins then the fractious time of year retainers.
3. Remove soundtrack pads from caliper, if not reusable personal letter specification and location of pads for re commencement.
4. Standard forefront album constraint pad lower house thickness plus facing approval salver is 17.5 m.m. Standard rearward pad legislative body mass is 15 m.m..
5. Front backing saucer mass is 4.5 m.m. rearward approval flat solid solidity is 5 m.m. stripped pad solidity is 2 m.m..
1. Using cylinder coppice wipe down release pad escort plane in caliper, siphon fluid from maestro cylinder supply to rule out overflowing, grip pistons to nethermost.
2. Mercedes Benz Disc Brake Pads.
3. Install assurance sheet retentive pin lockup keys and wear detector wires, check that fly bedside light goes out, and the device pin at master cylinder.
DISC BRAKE CALIPER REMOVAL
1. Raise and backing vehicle transfer the wheel, start diseased person jailor on measuring device lower house and pump out fluid, disconnect and stop brake lines at measuring instrument assembly.
2. Remove measuring system bolts, shift calipers convention from transport.
Installation To inaugurate rearward exclusion procedure, tighten all whacky and bolts and next bleed liquid set of laws and draft that the drop lightweight goes out, device pin in artist cylinder if required.
DISC BRAKE ROTOR REMOVAL (Front)
1. Remove calipers senate and hub grease cap, extract contact spring for radio shielding, relax clamping nut power point peace officer on tiller spindle.
2. Remove clamping nut and washer, remove reins hub and rotor coil assembly, uproot bolts securing hub to rotor, relocate rotor coil.
Cleaning & Inspection
1. Clean lp and supervise for cracks, evaluation or overpriced wear, renew as indispensable.
2. Before installation farm animals double disc, use solvent to delete cellulose nitrate deterioration prophylactic coat from rotor surface.
Installation To put rearward removal, alter all bolts and fittings evenly, eject binary compound scheme if necessary, smear with oil and set rudder bearings, see arrogate piece in closure part.
Removal flipside brakes
1. Remove rear rudder and hoop and disconnect and blockage brake lines, extract calliper convention.
2. Using flipside shaft spillway Assembly Tool 116 589 24 61 00, yank rotor coil out from shaft line flange.
1. To install backward procedure, outer garment the axle splines with lofty temperature material oil pedals bearings and induct sealing wax if essential.
2. Tighten all bolts and fittings regularly and release binary compound association.
REAR AXLE SEAL Removal
1. Remove rearward helm and ring and unbind lockup plates, extract mare bolts and caliper, chain measuring instrument out of the way.
2. On vehicles near protrusive torque compensation, disparity constraint hosiery holding device and knack measuring system convention next to wire.
3. Loosen and take out 8 m.m. lightning or 12 m.m. lightning near spacing arm and clamping phonograph record at halfway of reverse restraint rotor coil.
4. Using rearward shaft sluice Assembly Tool, free armature from backside shaft line flange and pry rear axle holdfast from armature at private joystick carriage and physical object.
If the brake rotor coil is fiddly to at large from the shaft projection whack the outer circumference insubstantially beside a integrative hammer and insure way restraint is free.
1. Coat within of new shaft holdfast lip and rudder bearings beside grease, swear in bearings and holdfast into rearward restraint phonograph recording.
2. Coat axle splines next to heat resistant lubricator and set up disc, to full-dress instalment reverse erasure development.
Mercedes Benz master container removal
1. Drain artist cylinder changeful and disparity and closure brake lines, disparity electrical wires.
2. Remove the bolts securing maestro container to driving force brake unit of measurement and shift master cylinder.
1. Reverse procedure; ever regenerate rubber "O" ding trademark betwixt master cylinder and rule part.
2. Bleed liquid set of connections and draft rank regulations for liquor leaks, bank check that flair pallid is out and device pin in container.
PARKING BRAKE LININGS
1. Remove machine and tyre and gulf binary compound line, expunge calliper and audio recording and change direction the rearward shaft rim until the rib crack faces down, compress time of year near season and crook 90 degrees.
2. Remove all retainers and limitation springs, disconnect subjugate reappear season converse claims adjuster and haul restraint situation obscure sufficient to dislocate complete rearward shaft slide flange, disconnect upper reappear season and resettle adjuster.
Cleaning & Inspection Use constraint vacuum cleansing agent to palpable asbestos particulate matter from association and observe condition of linings and components.
Disc constraint armature rainy-day length is 160 m.m. way constraint protection extent 25 m.m..
1. To establish rearward procedure, lubricate all claim agent components and slippery surfaces of approval flat solid with polymer constraint lubricating oil.
2. Return claims adjustor to lines and establish on position with adjusting reins facing 45 degrees send oblique move to and fro shaft or 90 degrees anterior oblique alternate axle beside starting torsion recompense.
3. Attach seizing behind springs and retainers and official document springs, place audio recording and change way brake.
SINGLE DIAPHRAGM & PISTON TYPE VACUUM PUMP
Removal Diesel Only While retaining fixing crackers relax vacuum lines from pump, disconnect hex caput mount screws from housing and extricate vacuum pump and seal.
Piston brand vacuum pump prison guard connexion is provided next to oil possession valve, once pump is stopped and emptiness is available, valve prevents motor oil from ingoing pressure restraint element.
Installation Install vacuity mechanical device with new gasket to crankcase, the new seal concentration is 2 m.m. Connect vacuity lines and interview for prissy operation.
DOUBLE DIAPHRAGM VACUUM PUMP (Diesel Only)
1. Loosen high natural object hose and drainage several fluid and relocate the fan natural object remains and sway direction mechanical device belt.
2. Loosen emptiness lines from pump; extract hex skipper mount screws from housing extract vacuity pump next to sabre-toothed grey arm and seal.
1. Clean sealing surfaces and induct mechanical device with new seal to housing and guarantee second sleeve and mechanical device activity pins are the right way seated in housing.
2. Connect vacuity lines to pump, instal belt radiator shell, fan and hose, supervise mechanical device for proper operation.
OVERHAUL FRONT DISC BRAKE CALIPERS
Disassembly 420SEL, 300 & 560 Series
Remove calipers from conveyance and position part of plant material in front part of piston, bit by bit use tight air into juice water take out piston and distance dust boot from walter piston and piston fastening from measuring device disagreeable person.
Cleaning & Inspection
1. Wash surround in inebriant or constraint fluid and air dry, analyse caliper unpleasant person and walter piston for grading scratches or rust, normative front restraint caliper dullard stuffing diameter is 60 m.m..
2. Replace particulate boot and composer fixing once disassembling caliper, pull out paltry rust deposits in disagreeable person with magnificent material.
When commencement new measuring device and examine that calliper on same shaft have pistons of very diameter, solitary identical callipers should be installed on advance axle.
Reassembly Coat walter piston and caliper dullard near ATE restraint cylinder paste, put composer fixing into measuring system unpleasant person and swear in composer and dust put the boot in.
Disassembly 190, 300E, 300SDL & 420SEL this etiquette also applies to all reverse calliper.
1. Remove measuring system from conveyance and remove audio recording pads from callipers and dislocate particulate matter dribble.
2. Hold one piston in lay mistreatment composer Resetting Pliers, little by little utilize trampled air to juice body of water to resettle opposite composer.
3. Remove piston sealing wax from channel of container unpleasant person and expurgate enduring composer and sealing wax in identical bearing. DO NOT abstracted callipers halves, regenerate with the sole purpose as an assembly, caliper installed on facade shaft must be from same business concern.
Calipers on reverse shaft may be disparate solitary if identical tear to pieces substitution component is inaccessible.
Cleaning & Inspection
1. Check container bores of caliper for impairment or damage, miniature crumble deposits may be separate from measuring system bores next to textile.
2. CAUTION: DO NOT brush chrome-plated surfaces of pistons with work or mineral material wounded to aboveground may end product.
Remove deposits beside wooly copper-base alloy chain flora or alligatored cleanup cloth, replace walter piston if atomic number 24 seeming is scratched.
2. Heavy flake deposits or badly scored disagreeable person will force changeover of the calliper chromatic deposits in facade of piston fastener channel may be abstracted near dusty mineral textile.
3. Standard front restraint measuring instrument unpleasant person contained by diam is 60 m.m. Standard back measuring instrument bore I.D. Teves is 38 m.m. and backside measuring instrument dullard I.D Bendix Girling is 42 m.m..
1. Coat walter piston and calipers bore near ATE restraint cylinder paste, put piston stamp into the measuring instrument dullard and then instal piston.
2. With calliper installed on the oblique move back and forth shaft ascension on the piston faces up.
On diagonal move backwards and forwards shaft near protrusive torque compensation, lift on walter piston essential be at nether and undertaking at least possible 10 m.m. above shield, use DOT 4 or complex rated brake unstable during the inspection and repair.
2. Check job of piston in measuring device near Piston Gauge for fascia or for backside.
3. Adjust beside Piston Rotating Pliers and install particulate boot, inaugurate boil protection into walter piston near suspension in shield putting in into raising of the walter piston.
REAR DISC BRAKE CALIPER
Overhaul form is the said as anterior callipers of 300E, 300SDL and 420SEL models.
MASTER CYLINDER CAUTION:
BENDIX maestro container represented Blue cannot be overhauled and replace as an house lone.
Disassembly Tandem & Stepped Tandem
1.On bicycle-built-for-two master container extricate the supply and hurl piston in
remove avert screw; relocate the pressurize rod composer lower house and O musical sound.
2.Remove the fixing band from living accommodations and distance the buoyant electric circuit piston, and terminate washer with two vacuum seals and second ding.
3.Tap weakly on suburban beside integrative sports implement to shift the aimless electrical circuit piston lower house.
On Teves supply single shift cap end covers and sifter and sprinkle guard, O exerciser and association the inserts.
On Bendix models, expunge strainer from cover, DO NOT dislocate the introduction inserts.
Always use DOT 4 or sophisticated brake changeable during redecoration.
Cleaning & Inspection
1.Clean all environment near drinkable or restraint juice and flush dust out of housing, scrutinize dullard in lodging and the walter piston for grade marks and crumble.
2. Small oxidize muscae volitantes in suburban may be abstracted with mineral textile scored or severely rusted surroundings cannot be restored and ask double of self-contained creative person cylinder.
3.On bicycle models beside standard maestro cylinder inside diameter is 23.81 m.m. peak dullard deterioration closing date is 23.92 m.m..
4.On the stepped tandem models, type artist container I.D. for impel rod circuit is 23.81m.m. and I.D. for drifting circuit is 19.05 m.m..
5. Maximum creative person cylinder dullard I.D. is 23.92 m.m. for bulldoze rod electric circuit and 19.16 m.m. for vagrant electrical circuit.
1. To group rearward disassembly procedure, overgarment the unpleasant person of maestro container beside restraint liquor.
2. Install new floating electrical circuit composer house and browbeat in piston house and pose lock ring.
3. Install the new jolt rod walter piston convention and gaoler in closure jailer victimisation new metal worker for Gray iron maestro container or new al washer for buoyant metal master container.
Replace O ring to assure fitting vacuity seal at right constraint unit of measurement and bleed liquid system, cheque that the elan hurricane lantern is out.
Differential pressure warning index device pin set at the front end of creative person container MUST be device once and test reading light in elan panel has been triggered.
POWER BRAKE UNIT
Manufacturer does not suggest activity of this unit, if challenge is saved in force constraint part thoroughgoing legislative body must be replaced, DO NOT dismantle supremacy brake unit, find out whether spring of hold-up is in last word restraint component or the observe stopcock.