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Fiat 500 C – S&S

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Reduced weight

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Pre-assembly of suspension before installing it on the vehicle.

There are two rear axle versions depending on the vehicle version. The following illustrations show
that the structure of the rear axle is similar for both versions, the difference is the presence of:



Drum brakes for the 1.2 8V petrol engine and 1.3 Multijet versions



Full disc brakes for the 1.4 16V petrol engine version.

1.2. 8V petrol / 1.3 Multijet version

1.4 16V petrol version

Содержание 500C ABARTH

Страница 1: ... 1 Fiat 500 C S S FIAT 500 C ...

Страница 2: ...nnot involve special liability for involuntary errors or omissions The information in this guide is subject to continuous updating Fiat Group Automobiles S p A accepts no responsibility for consequences arising from the use of out of date information This publication is for training purposes only For up to date and comprehensive technical information for service purposes refer to the service manua...

Страница 3: ...l Comfort opening 24 Soft top movement and vehicle speed 24 Soft top movement and temperature 24 Emergency manoeuvre 25 Soft top initialisation 25 Stop Start and electrical soft top interaction 26 Tailgate soft top interaction 26 Soft top management when the motor is locked 26 Soft top and climate control system interaction 27 Heated rear window soft top interaction 27 ELECTRICAL SYSTEM 28 SPARE P...

Страница 4: ... 4 Fiat 500 C S S ...

Страница 5: ...roach that is the addition of new functions on a successful already marketed product Fiat 500 C indeed inherits all the winning features of the basic vehicle such as the top safety comfort in the compartment with 4 seats for adults and a luggage compartment that does not give up to precious cm of capacity Among others the luggage compartment thanks to clever system of parallelogram hinges gives an...

Страница 6: ...oft top mechanical part is mainly formed by 1 soft top frame stuck and screwed on the vehicle chassis 2 2 guides integral with the frame by rivets 3 Bowden cables and control unit operated by the motor 4 6 centre ribs three out of which directly linked to the pads sliding inside the guides 5 1 rear rib reinforcement at the base of frame 6 cover canvas 7 roof interior trim 8 rear window movement ki...

Страница 7: ...ext to the spoiler position and 9 screws at the back The whole contour of the soft top frame is sealed Soft top frame fastened on body Front left side area Front right side area the centering element is visible the centering element is visible Rear spoiler position area left side Rear spoiler position area right side ...

Страница 8: ... 500 C S S Vehicle interior side area left side Vehicle interior side area right side Vehicle interior rear area Vehicle interior rear area next to the control unit next to the motor Vehicle exterior rear area ...

Страница 9: ...de parts the two guides are fastened by rivets the movement pads are located in these guides Guide Bowden cable and control unit Control unit The Bowden cables slide inside the guides pulled by a mechanism including a toothed reel operated by a motor ...

Страница 10: ...ckets edges they are linked to The movement ribs are operated by front pads linked to the front rib sliding in the side guides on their turn operated by Bowden cables pulled by the motor The sixth movement rib is next to the rear spoiler During horizontal movement it stops and is fastened by two hooks one on the left and one on the right side of the soft top frame When the roof starts its vertical...

Страница 11: ...astening screws to the first front rib on the left side At the back of the frame a rib fastens the soft top cover canvas Unlike the front rib and the six centre ribs the rear rib is always stopped during the roof opening and closing movement It only fastens the soft top cover canvas at the back The rear rib is screwed to the soft top frame and contains a reinforcement bar Reinforcement bar Rear ri...

Страница 12: ... 12 Fiat 500 C S S Interior trim Ribs and guides are coated by an interior trim inside the car Interior trim The interior trim is fastened to the ribs and is operated during movement ...

Страница 13: ...movement kinematic components Detail A of left side kinematic components Detail B of the left side kinematic components The slight translation and following rotation movement is achieved by a kinematic movement formed by a set of levers These kinematic components are operated by the movement of pads 1 as shown in the illustration of detail B of the kinematic components The illustrations show the k...

Страница 14: ...ned by four screws on a cross member between the rear window and the sixth horizontal rib The cross member is linked to the rear window movement kinematic component by four screws being the rear window linked to the sixth movement rib the spoiler can follow the soft top vertical movement Screws securing the spoiler to the cross member ...

Страница 15: ...t top it can be lifted to improve aerodynamic comfort inside the compartment In the centre of the spoiler a retaining tooth makes it integral to the soft top frame To lift the spoiler just move the retaining tooth to the right passenger s side as shown in the picture Front spoiler retaining tooth ...

Страница 16: ...tion is open at speeds over 60 km h When the roof is fully open the spoiler should be lowered to prevent wind noises from entering the compartment Interior seal Next to the area between soft top frame and body a seal covers the whole contour excluding the soft top frame rear part Rubber seal The seal is in butyl based rubber This special type of rubber features a thick molecular structure highly r...

Страница 17: ...orizontal area Automatic if the opening closing buttons are pressed for an activation time Ta over 300 ms Ta 300 ms long control The automatic movement concerns the soft top roof horizontal area and the soft top vertical area here the movement can only be automatic Here below sequentially the operating logics for the roof automatic movement during opening and closing steps are described Movement t...

Страница 18: ...losing is pressed again the roof stops in an intermediate position in the horizontal section Complete closing position Intermediate closing position on horizontal section From the intermediate horizontal opening position pressing the opening button once the roof continues the automatic movement until reaching the full horizontal opening position spoiler position Complete opening position spoiler p...

Страница 19: ...ete horizontal opening position spoiler position Complete vertical opening position From the spoiler position pressing the opening button once the roof moves automatically If before reaching the complete vertical opening position the button is pressed again the roof stops and reverts its movement going back to the spoiler position No intermediate positions are allowed for the vertical section ...

Страница 20: ... 20 Fiat 500 C S S Roof in spoiler position Roof in vertical opening process Roof in spoiler position after pressing the button ...

Страница 21: ...e opening position would interfere with the rear window movement Vice versa when the roof is in full vertical opening the tailgate opening is prevented pressing the release button the roof moves automatically and only when it reaches the spoiler position the tailgate lock is released From the fully open position pressing the closing button the roof closes towards the spoiler position If during the...

Страница 22: ... 22 Fiat 500 C S S Roof in full opening position Roof in closing process Roof in closing and movement reversal process ...

Страница 23: ...m from the fully closed position In the last 25 cm closing must be completed manually keeping the closing button pressed Considering that the anti pinch function is not included this operation logic has been designed to preserve the safety of the vehicle passengers that could accidentally be projecting from the vehicle itself during closing 25 CM MANUAL CLOSING AUTOMATIC CLOSING ...

Страница 24: ...C the roof opens and stops in any position when the button is released The soft top closing by remote control is not allowed Soft top movement and vehicle speed The driver can move the soft top in the horizontal and vertical sections if the vehicle speed is below 60 km h If during the vertical movement the vehicle speed exceeds 60 km h the soft top must reach one of the two safety positions spoile...

Страница 25: ...ation As a result of an emergency manoeuvre the soft top could fail to operate automatically The initialisation procedure must be carried out This can be made by Examiner in BCM diagnosis mode The initialisation procedure is guided by the diagnosis instrument informing the operator about the operations to be made on interior movement buttons At the end of the operations if the initialisation proce...

Страница 26: ...starts and is completed Tailgate soft top interaction The Body Computer BCM receives the release request of the tailgate from the button on the handle or by the button on the remote control For every release request BCM must be informed about the soft top current position if the soft top is in the spoiler position stopping in any intermediate position of the horizontal section or if it is fully cl...

Страница 27: ...stem node manages the fans to preserve their operation In case of a high difference outside temperature and the temperature set by the driver on the climate control system node with open soft top the interior temperature sensor would detect always a rather high temperature thus the fan would work always at high speed and risk following damage Under these conditions the climate control system node ...

Страница 28: ... by 1 Motor with Hall effect position sensor 2 RCU control unit Roof Control Unit Motor RCU control unit Roof Control Unit Wiring harness The RCU control unit and the motor are located at the back of the soft top They are both fastened on the soft top frame part below the rear window ...

Страница 29: ...re stored by the ECU during learning initialisation the first time by Fiat Auto Poland factory The RCU depending on the total stroke and on the information sent by the sensor calculates intermediate positions including the spoiler position Operating diagram RCU BCM Opening switch Closing switch Motor OUTPUT OUTPUT INPUT LIN INPUT FeedBack ...

Страница 30: ...ts and receives data to from the soft top control unit RCU through a LIN line BCM sends the following information to the RCU control unit Intervention of the S S function Autostart tailgate release request tailgate status vehicle speed outside temperature Comfort opening control key status key on off The Body Computer BCM receives from the RCU feedback signals to know the true position of the roof...

Страница 31: ... 31 Fiat 500 C S S Wiring diagram ...

Страница 32: ...t sensor 3 bus LIN line 4 soft top opening control opening switch 5 soft top closing control closing switch 6 n c 7 n c 8 connection to motor 9 connection to GND earth 10 n c 11 n c 12 n c 13 position sensor 1 signal 14 position sensor supply 15 position sensor 2 signal 16 connection to motor motor PinOut Motor side connector 1 motor control from RCU 2 motor control from RCU 3 position sensor supp...

Страница 33: ...ools down or current decreases Locked motor system It is set when the motor locks suddenly Prevention for 30 seconds and new control to be sent Motor system failure Motor in short circuit or overheating Once the short circuit has been removed or the system has cooled down enter the control again Battery initialisation under voltage It is set during the initialisation procedure and a battery voltag...

Страница 34: ... opening switch failure Roof closing switch failure H_BRIDGE failure Motor failure Locked motor U0207 Roof movement control module faulty Wrong message length on LIN line Detected wrong length on LIN line message Roof movement control module missing Messages on LIN line missing Missing messages from RCU to BCM Roof movement control module irregular Error response status from RCU B1087 LIN2 open ci...

Страница 35: ...ANVAS Include fasteners glue stitching etc 2 ROOF INTERIOR TRIM Include fasteners glue stitching etc 3 LH REAR WINDOW KINEMATIC COMPONENT LEVERS Include fasteners 3 bis RH REAR WINDOW KINEMATIC COMPONENT LEVERS Include fasteners 4 SPOILER Include fasteners 5 THIRD BRAKE LIGHT Include fasteners 6 CENTRE RIBS Single kit with no 6 ribs 7 LEFT GUIDE Include fasteners ...

Страница 36: ...ORCEMENT Single kit with both elements 9 CONTOUR SEAL Include butyl 10 PLASTIC COVERS Single kit with no 4 covers front rear LH RH 11 COMPLETE WIND DEFLECTOR Include fasteners 12 WIRING HARNESS 13 CONTROL UNIT 14 MOTOR Include fasteners 15 DRIVE UNIT Exclude Bowden cables ...

Страница 37: ... 37 Fiat 500 C S S 16 DRIVE UNIT BOWDEN CABLE Managed as a single piece Quantity 2 on vehicle 17 LH MECHANISM ASSEMBLY Include LH strap 17 bis RH MECHANISM ASSEMBLY Include RH strap ...

Страница 38: ...d absorption of slight unevenness in the road surface Dual acting telescopic hydraulic shock absorbers Upper shock absorber mounting with improved axial rigidity to improve comfort The wheel strut has an increased transverse camber angle to improve camber angle when cornering wheel perpendicular to the ground Rear suspension The torsion beam rear suspension semi independent wheels has an anti roll...

Страница 39: ...ing on the vehicle version The following illustrations show that the structure of the rear axle is similar for both versions the difference is the presence of Drum brakes for the 1 2 8V petrol engine and 1 3 Multijet versions Full disc brakes for the 1 4 16V petrol engine version 1 2 8V petrol 1 3 Multijet version 1 4 16V petrol version ...

Страница 40: ...is and horizontal upper bushing for fastening to the rear rail The coil springs are lodged between the lower plate on the axle and the upper mount welded onto the side rail there is a rubber element between the upper mount and the spring The end stop buffers are made from Cellasto for this reason because of their shape they are secured to a mount welded onto the rear rail that also serves as the u...

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