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OPERATION AND PROGRAMMING |
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STHFMZ3 Comfort Roof Control Module designed for • Mercedes Benz SL (R231) Firmware v2.10 and up |
Further information and manuals for all products can be found on our web site w w w . m o d s 4 c a r s . c o m |
PLEASE READ THE COMPLETE MANUAL CAREFULLY BEFORE USING THIS PRODUCT. We explicitly point out that all functions of this control unit should be used only while exercising caution and responsibility. We can NOT be held liable for any damage or injury caused by installing or using this product. Operation must be supervised and paid attention to in order to ensure that there are no objects or persons in range of moving parts due to the fact that top mechanics do not have pinch protection. Please study and be aware of the procedures to interrupt an ongoing operation in an emergency. |
Important Information. READ BEFORE USING! | |
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![]() | TROUBLE SHOOTING - NEED TO CONTACT US? If you run into any problems after installing the module, please go over the manual again in great detail, clicking every photo for full size! We now have a full Knowledge Base with Support Ticket system available online at www.mods4cars.com/support If you need to contact us, the best and fastest way to do so is by opening a support ticket there |
![]() | This module comes with our USB Field Upgrade and Configuration Port! We recommend connecting it to a computer BEFORE YOU INSTALL and using our support app "m4cconnect" to do a quick firmware update check. M4cconnect as well as all other information regarding USB update and configuration can be found at www.mods4cars.com/usb. You can even configure and activate your favorite module functions and settings on screen before the module is installed in the car! It is a good idea to permanently install the USB cable with the module in the car, leaving the computer plug in an easily accessible spot for later use with a Wifi/3G/4G connected laptop. |
Detailed function description (Factory setting underlined) |
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Function 1 - MODULE MODE + MASTER SWITCH ( 0=OFF / 1=ON / 2=EXT / 3=EXP ) |
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The module can quickly and easily be enabled and disabled using this function. It acts like a master switch. When disabled, the module becomes completely inactive and behaves as if it was not installed while keeping all other function settings intact for when it is re-enabled later. • Setting 1 is the regular operation mode with emphasis on safety. Turning the ignition on or off as well as hitting any button on the remote at any time during remote operation immediately stops an ongoing top operation. • Setting 2 is the extended operation mode with emphasis on convenience. Starting or stopping the engine will not stop a top operation and it is possible to lock or unlock the doors one time from the remote while the top is moving. • Setting 3 is the operation mode designed for responsible experts. It allows the doors to be locked and unlocked more than once. This can come in handy if after getting out and locking the doors something was forgotten in the car and needs to be retrieved while the top is still running. Settings 2 and 3 require extra responsibility and caution to avoid injury by moving top parts to passengers not expecting the top to continue running after the engine is turned off and due to the fact that the first key press on the remote to lock or unlock the doors (or continued toggling of the door locks) will not stop the top! To abort the operation, press unlock while the doors are unlocked or lock while they are locked. EXTREMELY IMPORTANT: In order to avoid problems with diagnostic tools and to avoid confusion or risk of injury by unexpected top movement, we urge you to ALWAYS DISABLE the module before taking the car in for routine maintenance or lending it to a third person! In case of any top malfunction NEVER take the car with the module still installed to an unsuspecting dealer! In such cases ALWAYS contact Mods4Cars for support first at www.mods4cars.com or completely uninstall the module before a dealer visit. |
Function 2 - Console Switch One-Touch ( 0=OFF / 1=ON / 2=VALET ) |
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This function allows full automatic top operation using the console switch. • Setting 1 enables One-Touch operation and comfort close for all windows. • Setting 2 disables opening of the top (Valet Mode), even from the remote! IMPORTANT: Setting 2 disables top operation completely! If the top unexpectedly does not work, check and make sure VALET mode is not turned on. Top operation with the console switch: • Holding down the switch (longer than 1 sec) in either direction will operate the top in manual mode for as long as the switch is held. • Tap open 1x: Open the top and bring the windows into the programmed position. • Tap open 2x: Open the top and bring the windows into the opposite position this one time. • Tap close 1x: Close top and windows. • Tap close 2x: Close only the top and leave the windows open. Comfort close for all windows: • Tap the top close switch while the top is already closed to roll all windows up. To interrupt an ongoing operation: Tap the console switch in any direction at any time (ignition must be on!) - even if the top was started by remote! |
Function 3 - Console Switch Invert ( 0=OFF / 1=ON ) |
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This function allows reversing the direction of the console switch. • Setting 1 activates reversed direction operation. |
Function 4 - Maximum Speed ( 0=0 km/h / 1=10 km/h / 2=20 km/h / 3=30 km/h / 4=40 km/h / 5=50 km/h / 6=60 km/h ) |
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This function determines the desired speed limit for top operation via console switch. • Setting 0 only allows roof operation while halted. • Setting 1 and up increase the speed for top operation in steps of 10km/h (~7mph). We recommend to keep the speed as low as possible and only operate the top on even and smooth street surfaces! Once the top is started within the programmed speed limit, it will continue running, even if the speed later exceeds the limit during the top operation! |
Function 5 - Remote Top ( 0=OFF / 1=HOLD / 2=TAP / 3=BOTH ) |
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This function allows full automatic top operation with the original remote fob by pressing the lock and unlock buttons. It also allows the motorized trunk to be closed from the remote. By factory it can only be opened. • Setting 1 (Hold) allows opening and closing of the top by holding down the unlock and lock buttons on the remote. • Setting 2 (Tap) allows opening and closing of the top by tapping the unlock and lock buttons on the remote multiple times. • Setting 3 (Both) allows both of the methods to be used. Top operation with the remote fob using HOLD: • Hold unlock down for about 4 sec: Open the top and bring the windows into the programmed position. • Hold unlock down for about 4 sec, let go and tap open again briefly: Open the top and bring the windows into the opposite position. • Hold lock down for about 4 sec: Close top and windows. • Hold lock down for about 4 sec, let go and tap close again briefly: Close only the top while leaving the windows down. Top operation with the remote fob using TAPS: • Tap unlock 3x in 1 sec intervals: Open the top and bring the windows into the programmed position. • Tap unlock 4x in 1 sec intervals: Open the top and bring the windows into the opposite position this one time. • Tap lock 3x in 1 sec intervals: Close top and windows. • Tap lock 4x in 1 sec intervals: Close only the top while leaving the windows down. Closing the motorized trunk by remote: • Hold trunk button down for 2 sec: Closes the trunk lid. To interrupt an ongoing operation: Tap unlock or lock again. IMPORTANT: Keep in mind that Extended and Expert modes allow one time change (or multiple changes) of the door locks! In such case a second key press on the same button will be necessary to stop the top. IMPORTANT: The HOLD operation (including trunk closing) only works on newer models with keyless door handles, where it is possible from the factory to hold down the unlock button on the remote in close proximity to activate windows and/or top. Range is artificially capped by Mercedes. If full radio range is desired, use the TAP operation. |
Function 6 - Remote Windows ( 0=OFF / 1=HOLD / 2=TAP / 3=BOTH ) |
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This function allows separate control of the windows with the original remote fob by pressing the lock and unlock buttons. • Setting 1 (Hold) allows opening and closing of the windows by holding down the unlock and lock buttons on the remote. • Setting 2 (Tap) allows opening and closing of the windows by tapping the unlock and lock buttons on the remote multiple times. • Setting 3 (Both) allows both of the methods to be used. Window operation with the remote fob using HOLD: • Hold unlock down for about 2 sec: Open all windows. • Hold lock down for about 2 sec: Close all windows. Window operation with the remote fob using TAPS: • Tap unlock 2x in 1 sec intervals: Open all windows. • Tap lock 2x in 1 sec intervals: Close all windows. IMPORTANT: The HOLD option only works on newer models with keyless door handles, where it is possible from the factory to hold down the unlock button on the remote in close proximity to activate windows and/or top. |
Function 7 - Keyless Top ( 0=OFF / 1=CLOSE ONLY / 2=OPEN/CLOSE ) |
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This function allows to close and open the convertible top by touching the door handle (requires Keyless Entry option!) • Setting 1 only allows closing the top. • Setting 2 allows closing and opening. Top operation with the Keyless Entry door handle: • Tap thumb on lock sensor 2x in 1 sec intervals, then hold hand inside door handle: Open the top and bring the windows into the programmed position. • Tap thumb on lock sensor 3x in 1 sec intervals: Close top and windows. • Tap thumb on lock sensor 4x in 1 sec intervals: Close only the top while leaving the windows down. • To get in the car without interrupting the opening top, grab the door handle and open the door quickly. • Make sure to leave about 2 seconds between taps and that there is a clicking sound after each tap. Otherwise the input was not recognized. To stop an ongoing operation: Tap the lock sensor again. Keep in mind that Extended and Expert modes allow the doors to be locked while the top continues. In such case tap the lock sensor a second time. |
Function 8 - Window positions after opening top ( 0=NONE / 1=FRONT / 2=ALL ) |
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This function determines the position of the windows after an automatic top opening run. • Setting 0 leaves all windows down. • Setting 1 raises the front windows only. • Setting 2 raises all windows. |
Function 9 - Window switch One-Touch ( 0=OFF / 1=ON / 2=NO IGNITION ) |
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This function allows to program the all-windows switch in the center console to raise all windows using One-Touch. By factory this switch only offers One-Touch down. • Setting 1 allows One-Touch closing of all windows with the ignition on. • Setting 2 additionally allows closing all windows with the switch after the ignition has been turned off and the driver's door has been opened. To close all windows at the same time, pull this switch up briefly and let go. To interrupt an operation, tap the switch again in any direction. |
Function 10 - Hazard flashers ( 0=OFF / 1=ON ) |
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This function activates side mirror the hazard flashers during remote controlled top operation or when the top continues running after the ignition has been turned off. • Setting 1 flashes the yellow lights in the side mirrors similar to the regular hazard flashing signal. |
Function 11 - Chirps ( 0=OFF / 1=LOCK / 2=UNLOCK / 3=LOCK/UNLOCK ) |
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This function activates brief signals when unlocking or locking using either the horn. • Setting 1 activates a shorn horn beep when locking. • Setting 2 activates a shorn horn beep when unlocking. • Setting 3 activates short horn signals when locking or unlocking. |
Function 12 - Folding Mirrors ( 0=OFF / 1=TAP / 2=ALWAYS ) |
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This function allows remote folding of the motorized mirrors on demand. The mirrors always fold back out when opening any door. • Setting 1 will fold the mirrors in by tapping the trunk button on the remote twice briefly. • Setting 2 will fold the mirrors in automatically when locking the car. It is recommended to use the factory provided setting for this (see below)! Most models already have a setting in the convenience menu that allows a folding mirror setting to be activated. If it is desired that the mirrors always fold when the car is locked, we recommend using the factory setting and leaving this function disabled! |
Function 13 - Comfort Wipers ( 0=OFF / 1=1x / 2=2x ) |
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This function activates a delayed wipe cycle after using the sprayers. This way any running water drops will be automatically removed. • Setting 1 wipes once after 10 seconds. • Setting 2 wipes twice in intervals of 10 seconds. |
Function 14 - Seat memory Left ( 0=OFF / 1=ONETOUCH / 2=ENTRY / 3=EXIT / 4=BOTH ) |
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This function allows convenient One-Touch operation for the left seat memory buttons or the automatic activation of seat position when turning the ignition on or off. • Setting 1 activates only the One-Touch operation. • Setting 2 recalls seat position 2 when turning the ignition on. • Setting 3 recalls seat position 3 when turning the ignition off. • Setting 4 recalls positions 2 and 3 when turning the ignition on and off respectively. Operation of the seat memory is analog to the console top switch. A long hold only moves the seat as long as the button is held. A short tap automatically moves the seat to the selected position. |
Function 15 - Seat memory Right ( 0=OFF / 1=ONETOUCH / 2=ENTRY / 3=EXIT / 4=BOTH ) |
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This function allows convenient One-Touch operation for the right seat memory buttons or the automatic activation of seat position when turning the ignition on or off. • Setting 1 activates only the One-Touch operation. • Setting 2 recalls seat position 2 when turning the ignition on. • Setting 3 recalls seat position 3 when turning the ignition off. • Setting 4 recalls positions 2 and 3 when turning the ignition on and off respectively. Operation of the seat memory is analog to the console top switch. A long hold only moves the seat as long as the button is held. A short tap automatically moves the seat to the selected position. |
Function 16 - ECO Mode Auto-OFF ( 0=OFF / 1=ON ) |
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This function allows automatic deactivation of the ECO mode when starting the car. By factory the ECO button (green LED in the ECO button) always comes back on every time the car is started. • Setting 1 turns the ECO mode off shortly after the ignition is turned on. It can still be activated manually at any time using the ECO button. |
Function 17 - Lock doors with engine running ( 0=OFF / 1=ON / 2=ALARM ) |
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This function allows the doors to be locked from the outside while the engine is running. By factory it is not possible to lock the doors from the outside while the car is running. • Setting 1 allows locking by remote while the car is running. • Setting 2 allows locking and prevents unauthorized driving by setting an alarm. This function is intended for extremely hot or cold climates where it might be necessary to leave a pet or infant in the car unattended for a very short amount of time while running a quick errand. In such cases one would usually have to take all occupants and turn off the car or take a risk by leaving the running car unlocked out of view. Use of this feature requires extreme caution and responsibility, since it is still possible for the car to get stolen and under certain circumstances (local laws) it might be illegal to leave a car running unattended. Setting 2 triggers a loud alarm using the horn if a door is opened or the transmission is shifted out of P gear. The alarm can be silenced by tapping the unlock button on the remote or by turning the engine off. |
Function/Setting Matrix (green fields are defaults) | |||||||
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Product: STHFMZ3 - SmartTOP for Mercedes Benz SL (R231) Firmware: v2.10 and up | |||||||
![]() | SETTING 0 | SETTING 1 | SETTING 2 | SETTING 3 | SETTING 4 | SETTING 5 | SETTING 6 |
Function 1 | OFF | ON | EXT | EXP | |||
MODULE MODE + MASTER SWITCH | Module Disabled | Module Enabled | Extended Mode READ MANUAL! | Expert Mode READ MANUAL! | |||
Function 2 | OFF | ON | VALET | ||||
Console Switch One-Touch | Factory behavior | One-Touch operation | Valet Mode | ||||
Function 3 | OFF | ON | |||||
Console Switch Invert | Factory Behavior | Switch inverted | |||||
Function 4 | 0 km/h | 10 km/h | 20 km/h | 30 km/h | 40 km/h | 50 km/h | 60 km/h |
Maximum Speed | Only while halted | 10 km/h (~7mph) | 20 km/h (~13mph) | 30 km/h (~19mph) | 40 km/h (~25mph) | 50 km/h (~31mph) | 60 km/h (~38mph) |
Function 5 | OFF | HOLD | TAP | BOTH | |||
Remote Top | No remote functions | Hold remote for 3 sec. | Tap remote 3x | Hold and Tap enabled | |||
Function 6 | OFF | HOLD | TAP | BOTH | |||
Remote Windows | No remote functions | Hold remote for 2 sec. | Tap remote 2x | Hold and Tap enabled | |||
Function 7 | OFF | CLOSE ONLY | OPEN/CLOSE | ||||
Keyless Top | Factory behavior | Top can be closed | Top can be opened and closed | ||||
Function 8 | NONE | FRONT | ALL | ||||
Window positions after opening top | All windows down | Front windows up | All windows up | ||||
Function 9 | OFF | ON | NO IGNITION | ||||
Window switch One-Touch | Factory behavior | One-Touch operation | Ignition off allowed | ||||
Function 10 | OFF | ON | |||||
Hazard flashers | Disabled | Enabled | |||||
Function 11 | OFF | LOCK | UNLOCK | LOCK/UNLOCK | |||
Chirps | No Chirps | Only Chirp on Lock | Only Chirp on Unlock | Chirp on Lock and Unlock | |||
Function 12 | OFF | TAP | ALWAYS | ||||
Folding Mirrors | Disabled | Tap button 2x | Always fold in | ||||
Function 13 | OFF | 1x | 2x | ||||
Comfort Wipers | Factory behavior | 1x delayed wipe | 2x delayed wipe | ||||
Function 14 | OFF | ONETOUCH | ENTRY | EXIT | BOTH | ||
Seat memory Left | Factory behavior | One-Touch Operation | Ign ON activates position 2 | Ign OFF activates position 3 | Both entry and exit active | ||
Function 15 | OFF | ONETOUCH | ENTRY | EXIT | BOTH | ||
Seat memory Right | Factory behavior | One-Touch Operation | Ign ON activates position 2 | Ign OFF activates position 3 | Both entry and exit active | ||
Function 16 | OFF | ON | |||||
ECO Mode Auto-OFF | Factory Behavior | ECO disable on start | |||||
Function 17 | OFF | ON | ALARM | ||||
Lock doors with engine running | Disabled | Enabled | Secured by alarm |