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HELP! SMG can't select reverse.
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<blockquote data-quote="B33mEr" data-source="post: 330175" data-attributes="member: 13609"><p>Logically it wouldn't make much economic sense to have a small niche volume of SMG gearbox rather than have a mass volume gearbox and adapted to a electronically controlled hydraulic actuated system cos it would be too expensive. If that was the case then SMG or SSG wouldn't be so problematic mate .... Mine is a 5 speed getrag unit GS5S31BZ according to realoem.com <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>Also i've been searching for a magnetti marelli gearbox for BMW ... it seems that i can't find it ...</p><p><a href="http://www.magnetimarelli.com/english/powertrain_prodotti.php" target="_blank">http://www.magnetimarelli.com/english/powertrain_prodotti.php</a></p><p></p><p>An "excerpt" from MM website</p><p>TRASMISSION CONTROL </p><p> </p><p>Magneti Marelli Powertrain produces robotized transmission gear or AMT (Automated Manual Transmission), that consist of the <strong>transformation of a regular gear box </strong>where the manual transmission is replaced by an Actuation kit (plug-in) electronically controlled by a Transmission Control Unit (TCU)</p><p> </p><p>This system allows:</p><p></p><p> * Automatic gear shift</p><p> * Automatic clutch</p><p></p><p>In this way the driver has the following options:</p><p></p><p> *</p><p> Possibility to choose between manual or automatic transmission</p><p> *</p><p> Manual transmission by joystick or at the wheel</p><p> *</p><p> No more clutch pedal</p><p></p><p>In addition all the information can be displayed on the dash board for a deeper awareness of the driver.</p><p> -------------------------------------------------------------------------------</p><p></p><p>Again i cant find any mention of gearbox (if any) made by magnetti marelli for BMW except for the electronic transmission control or AMT . </p><p>Even M3 SMG2 uses the same gearbox as found on the regular manual M3 ... i didn't know Siemens made gearbox too <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>Anyway here's an excerpt from BMW pdf document explaining SMG for their technical staff</p><p> </p><p><strong>System Components</strong></p><p><strong>The SMG II system is consists of the following components:</strong></p><p><strong>• Basic Gearbox (S6S420G, Getrag type D)</strong></p><p><strong>• SMG II Control Unit (Siemens)</strong></p><p><strong>• SMG CAN Bus</strong></p><p><strong>• DME Control Unit (MSS54)</strong></p><p><strong>• Hydraulic unit and solenoids</strong></p><p><strong>• Gearbox Actuator</strong></p><p><strong>• Clutch Slave Cylinder with PLCD (Permanent Linear Contactless Displacement)</strong></p><p><strong>• Shift Lever Module with Shift Lock</strong></p><p><strong>• Steering Wheel Paddle mounted switches</strong></p><p><strong>• DRIVELOGIC Control</strong></p><p><strong>• Display in instrument cluster</strong></p><p><strong>• DSC control unit</strong></p><p><strong>• SAC dry single disc clutch </strong></p></blockquote><p></p>
[QUOTE="B33mEr, post: 330175, member: 13609"] Logically it wouldn't make much economic sense to have a small niche volume of SMG gearbox rather than have a mass volume gearbox and adapted to a electronically controlled hydraulic actuated system cos it would be too expensive. If that was the case then SMG or SSG wouldn't be so problematic mate .... Mine is a 5 speed getrag unit GS5S31BZ according to realoem.com :D Also i've been searching for a magnetti marelli gearbox for BMW ... it seems that i can't find it ... [url]http://www.magnetimarelli.com/english/powertrain_prodotti.php[/url] An "excerpt" from MM website TRASMISSION CONTROL Magneti Marelli Powertrain produces robotized transmission gear or AMT (Automated Manual Transmission), that consist of the [B]transformation of a regular gear box [/B]where the manual transmission is replaced by an Actuation kit (plug-in) electronically controlled by a Transmission Control Unit (TCU) This system allows: * Automatic gear shift * Automatic clutch In this way the driver has the following options: * Possibility to choose between manual or automatic transmission * Manual transmission by joystick or at the wheel * No more clutch pedal In addition all the information can be displayed on the dash board for a deeper awareness of the driver. ------------------------------------------------------------------------------- Again i cant find any mention of gearbox (if any) made by magnetti marelli for BMW except for the electronic transmission control or AMT . Even M3 SMG2 uses the same gearbox as found on the regular manual M3 ... i didn't know Siemens made gearbox too :D Anyway here's an excerpt from BMW pdf document explaining SMG for their technical staff [B]System Components The SMG II system is consists of the following components: • Basic Gearbox (S6S420G, Getrag type D) • SMG II Control Unit (Siemens) • SMG CAN Bus • DME Control Unit (MSS54) • Hydraulic unit and solenoids • Gearbox Actuator • Clutch Slave Cylinder with PLCD (Permanent Linear Contactless Displacement) • Shift Lever Module with Shift Lock • Steering Wheel Paddle mounted switches • DRIVELOGIC Control • Display in instrument cluster • DSC control unit • SAC dry single disc clutch [/B] [/QUOTE]
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HELP! SMG can't select reverse.
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