When you hear weird noises coming from under your vehicle's hood, it's time to come to Transmission Plus. For more than 40 years, we've been providing complete transmission work and other auto repair services for car, truck, and RV owners. Expert Diagnostics, and deals the dealers can't beat! Specializing in: - Transmissions-Other - Auto Repair & Service - Auto Transmission Address: 245 Island Creek Rd, Pikeville, KY 41501; Cross Streets: Between Winding Ridge Rd and Narrows Rd/Marion Br; Phone: (606) 432-7128. Added to transmission fluid, it helps prevent deposit formation and fluid breakdown. In essence, it helps prevent transmission failure. When installed along with BG Universal Synthetic ATF, BG ATC Plus® prevents deposit formation, thereby prolonging fluid life and the life of the transmission. A professional use product that is an essential. Download Now Release Notes Previous Releases. Feature Spotlight: Uses fewer resources than other clients; Native Mac, GTK+ and Qt GUI clients; Daemon ideal for servers, embedded systems, and headless use. Nothing but good things to say about Marv and the guys at Transmissions Plus. This particular visit was only for an oil change, so nothing major needing prompt attention. Nevertheless, they called in the morning to verify service needs, and called again shortly later when my car was done.
| 9G-Tronic | |
|---|---|
| Overview | |
| Manufacturer | Daimler AG |
| Production | 2013–present |
| Body and chassis | |
| Class | 9-speed longitudinalautomatic transmission |
| Chronology | |
| Predecessor | Mercedes-Benz 7G-Tronic transmission |
9G-Tronic is Mercedes-Benz's trademark name for its nine-speed automatic transmission, starting off with the W9A 700 (Wandler-9-Gang-Automatik bis 700 Nm Eingangsdrehmoment; converter-9-gear-automatic with 516 lb-ft maximum input torque; type 725.0) as core model.
Abstract[edit]
In all applications this transmission is identified as the New Automatic Gearbox Generation Three, or NAG3. Initially it debuted on the E 350 blueTEC in 2013,[1][2] before launched in the Mercedes-Benz S-Class (W222). It has been expanded to be used in the Mercedes-Benz C-Class (W205) and the sedan and wagon variants of the Mercedes-Benz E-Class (W213). This transmission was later introduced on Mercedes-Benz M-Class (W166) facelift on the GLE 250 d model. V12 engine models continue to use the older Mercedes-Benz 7G-Tronic transmission. By the end of 2018 unsurpassed ratio span among longitudinalautomatic transmissions for passenger cars.
It is also fabricated by Jatco for use in Nissan and Infiniti vehicles.[3][4]
Specifications[edit]
Basic concept[edit]
Technical and economic progress is reflected in nine forward gears[a] out of ten main components,[b][5] compared to 7 forward gears[c] out of 11 main components[d] in the direct predecessor. It is fully electronic controlled. Torque converter lock-up can operate in all 9 forward gears.
Gear ratios[edit]
| Gear Teeth and Ratios | Planetary Gearset: Teeth | Count | Total | Avg. | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Model Type | First Delivery | Sun 1 Ring 1 | Sun 2 Ring 2 | Sun 3 Ring 3 | Sun 4 Ring 4 | Brakes Clutches | Ratio Span | Gear Step | ||
| Gear | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | R |
| W9A ALL 725.0 | 2013[e][5] | 46 98 | 44 100 | 36 84 | 34 86 | 3 3 | 9.1495 | 1.3188 | ||
| Ratio | 5.5032 | 3.3333 | 2.3148 | 1.6611 | 1.2106 | 1.0000 | 0.8651 | 0.7167 | 0.60148 | - 4.9316 |
| W9A ALL 725.0 | 2016[f][6] | 46 98 | 44 100 | 37 83 | 34 86 | 3 3 | 8.9022 | 1.3143 | ||
| Ratio | 5.35448 | 3.2432 | 2.2523 | 1.6356 | 1.2106 | 1.0000 | 0.8651 | 0.7167 | 0.60148 | - 4.7983 |
Nomogram[edit]
▶️ Interactive Nomogram
This nomogram is a real geometric calculator exactly representing the rotational speeds of the transmission's 3x4 = 12 internal shafts for each of its 9 ratios (+ reverse), grouped according to their 4 permanent coupling on 3 joint ordinates and 5 independent ordinates. These ordinates are positioned on the abscissa in strict accordance with the proportions of the sun gears' teeth numbers relative to those of their rings. Consequently, the output ratios on the 3rd ordinate (carrier of the third planetary gearset) follows closely those of the actual transmission. This advantageous geometric construction sets us free from Willis' famous and tedious formula, because all calculations are exclusively determined by lengths ratios, respectively teeth numbers on the abscissa for the 4 epicyclic ratios, and of rotational speeds on the 3rd ordinate for the 10 gear ratios.
Legend:
A : Brake (blocks s2 sun gear)
B : Brake (blocks r3 ring gear)
C : Brake (blocks c1 carrier gear)
D : Clutch (couples c3 carrier gear with r4 ring gear)
E : Clutch (couples c1 carrier gear with r2 ring gear)
F : Clutch (couples s1 sun gear with c1 carrier gear)
Applications[edit]
Mercedes models[edit]
Mercedes C-Class[edit]
- 2015–2017 Mercedes-Benz W205 (some models)
- 2018–today Mercedes-Benz W205 (all models)
Mercedes E-Class[edit]
- 2014–2016 Mercedes-Benz W212 (E 350 BlueTec only)
- 2016–today Mercedes-Benz W213 (all models)
Mercedes S-Class[edit]
- 2017–today Mercedes-Benz W222 (all except V12 models)
Non Mercedes-Benz models[edit]
- 2021–present Aston Martin DBX
- 2020 Nissan Titan (Jatco JR913E)
See also[edit]
Notes[edit]
- ^plus 1 reverse gear
- ^4 simple planetary gearsets, 3 brakes, 3 clutches
- ^plus 2 reverse gears
- ^4 planetary gearsets (Ravigneaux planetary gearset considered as 2), 4 brakes, 3 clutches
- ^First version with a gear ratio span wider than 9:1 as widest among longitudinal automatic transmissions for passenger cars at that time
- ^Second version introduced without notice with the Mercedes-Benz E-Class (W213) to reduce the step between gear 4 and 5 below the one of the 7G-Tronic (1.3684:1)
References[edit]
- ^'New nine-speed automatic transmission in the Mercedes-Benz E 350 BlueTEC: Premiere of the new 9G-TRONIC - Daimler Global Media Site'. Media.daimler.com. Retrieved 2020-01-16.
- ^'Mercedes-Benz E350 BlueTec gains nine-speed automatic transmission'. Retrieved 22 July 2013.
- ^'Daimler-Renault-Nissan – The alliance in action'.
- ^'Fact Sheet:Press Releases and Project Overview Daimler & Renault-Nissan Alliance'(PDF).
- ^ ab'System description'(PDF). documents.epfl.ch. Retrieved 2020-01-16.
- ^'Der neue Mercedes-Benz SL: Die Legende – jetzt noch dynamischer - Daimler Global Media Site'. Media.daimler.com. Retrieved 2020-01-16.
External links[edit]
Power Purge® and Maintenance Services
AAMCO's exclusive Power Purge® and Power Purge® Plus Transmission Flush (Fluid Exchange) services are the most comprehensive transmission maintenance services available anywhere. It's the service that is designed to replace virtually all of the old, degraded transmission fluid with fresh fluid to help prolong the life of your transmission. Much more than just a simple fluid drain from the transmission pan, our expert Technicians check and then exchange virtually all of the old fluid from your Transmission system using our state of the art and patented Power Purge® equipment.
AAMCO's Power Purge® Service Includes:
- A complete Transmission Vehicle Courtesy Check for your transmission and related systems.
- Exchange of virtually all of the old transmission fluid - including the torque converter and cooler.
Other basic transmission fluid changes can leave about 30% of old fluid in the torque converter and cooler.
AAMCO's Power Purge® fluid exchange services removes dirty, gritty and abrasive fluid that can harm your transmission - A complete refill with fresh, clean transmission fluid
- A thorough test drive and check for leaks
Upgrade to AAMCO's Power Purge® PLUS service that also includes:
- Removal of the transmission pan for a complete visual inspection for contaminants and abrasives.
- Replacement of the transmission filter or cleaning of the transmission screen if equipped
Transmission filters prolong the life of the fluid and transmission by trapping potentially harmful particles and abrasives. - Replacement of the pan gasket or pan sealing material if equipped or applicable.
If your transmission fluid is dirty or deteriorating, you might be on the way to a transmission problem An AAMCO Power Purge® Plus Transmission Flush (Fluid Exchange) & Filter Change is the best service designed to help identify potential problems and prevent those transmission problems before they happen.
*Not available for vehicles with internal transmission problems. A Transmission filter and pan gasket or pan sealing material is only included in the Power Purge® Plus service if equipped. The cost of the filter and gasket is extra and is based on the vehicle manufacturer and transmission type.
AAMCO's basic Transmission Fluid Change & Maintenance Service
AAMCO also offers a low-cost Safeguard transmission fluid change as well. Let AAMCO's transmission experts help keep your transmission properly maintained to factory recommendations to help prolong its life. Like all AAMCO Transmission Maintenance Services, our Safeguard® service begins with a complete Transmission Vehicle Courtesy Check to spot any potential problems.
AAMCO's Safeguard® Service includes:
Transmissions Plus Cle Elum Wa
- Removal of the transmission pan, dispose of the old fluid from the pan and inspect for contaminants.
- Replacement of the transmission filter or cleaning the transmission screen and pan gasket or pan sealing material if equipped or applicable.
- Perform a test drive and leak check