Alto has released a wide variety of products this spring; TD’s roundup of all the latest products from the company is below. Filter #207942 This new filter (pictured above) covers Toyota Lexus models AA81E, GS350, IS350, RC350, (Crown Athlete 2.0L) from 2013 to present. Filter #181948B This recently introduced filter covers Nissan/Jatco/Suzuki models RE0F11A (CVT)
Sonnax highlights its thermal bypass eliminator kits, which the company says can prevent transmission overheat in several popular Chrysler, Jatco/Nissan, ZF and Mercedes transmissions. These kits allow reuse of the OE cooler bypass valve by removing the OE thermal bypass valve and replacing it with either a plug or valve assembly that permanently allows flow
Tri Component has developed and produced an upgraded replacement metal-clad seal (p/n HO-25-13) for Mercedes 722.9 7G-Tronic torque converters. Unique long-life flexible elastomers are featured to overcome the OE brittleness. The complete Mercedes specialty brochure is available by contacting a company rep. It contains numerous breakthrough problem-solvers that have plagued these units. For more information
The TRP (theft relevant parts) process must be followed when dealing with Mercedes.
This month we make a temporary departure from the traditional Torque Converter Tech Tip article. Instead, we offer a different perspective: a torque-converter story as experienced and told by the vehicle owner. In our business we wrestle with the technical side of completing repairs and we all try to remain focused on the fact that some individual, outside our industry, owns and drives that vehicle. This gentleman not only had the motivation and determination to resolve a multi-year ongoing problem but also was willing to make a 15-hour drive to take the vehicle to a shop that he believed could fix that problem. We let him tell it in his own words.
I understand as transmissions progress in time with the future technologies, things will change and probably become more complicated. Let’s look at what used to be a simple design, the park-pawl components found in many transmissions. We have all heard of or seen the new “park-by-wire” systems found on some of the later transmissions in today’s market. The ZF6HP and ZF8HP have their version of park-by-wire with a release cable that can physically pull the park pawl out of the park position if the vehicle were to lose power. That system was probably the first to be seen in most transmission shops.
I heard a report recently on NPR (National Public Radio) that said, “Doctors are not good listeners; that is why a lot of unnecessary tests are done.”
When I heard that I said to myself, “That is true in our field too.” If we don’t listen well to the patient we may misdiagnose. Let me tell you about something that happened to me just recently that emphasizes this point. We had a customer sent to us by a local general-repair shop. He was a student here for the winter break visiting his family and was about to leave when he started to have transmission problems on his 1998 Mercedes M320.
For several years, technicians have been trying to solve the mysterious cold-stall issue in vehicles equipped with Mercedes 722.6 transmissions. When the problem was first identified, it was thought to be associated with aftermarket components. At that time, no one had seen the problem in a vehicle that still had only original equipment.
With the large number of 722.6 transmissions being used in both Mercedes vehicles and in Dodge and Jeep vehicles, where it is called the NAG 1, it is virtually certain that this transmission will end up in your shop for repairs. It may be that your shop refuses to work on Mercedes but Dodge and Jeep vehicles are all too welcome. And so it is in this way that if you have not worked on this transmission yet, you will. And it is not a bad unit to work on.
Paul’s list of problems with his car consists of some of the definitions that technicians (especially flat-rate techs) love to hate. Things like “The heat doesn’t always come out right” and “Sometimes the transmission doesn’t want to go like it should” or “The dash doesn’t light all the way up, and the radio needs a new speaker in the back right.”