Replaces all eight solenoids on the Aisin TF-80SC six-speed valve body when the trans flares, bangs a shift or drops into limp home.
If your Peugeot 407, Citroen C5, Saab 9-3 or Fiat Croma with the six-speed automatic has started banging into third, flaring between gears or sitting in limp home with a solenoid code stored, this is the parts answer most shops reach for first. It is the complete eight-solenoid bank for the Aisin TF-80SC, the same unit Peugeot and Citroen call the AM6 and Aisin also labels AF40-6. Replacing all eight at once costs one valve body removal instead of several.
The TF-80SC is shifted entirely by its valve body solenoids, with the transmission control module bolted to the case and firing them. Volvo's technical training material on this gearbox breaks the eight down as six shift solenoids, one lock-up solenoid and one system pressure solenoid. Six of the eight are linear (variable force) solenoids that meter clutch apply pressure smoothly; the two small on/off solenoids switch shift valves. The photo shows exactly that mix: six tall linear units with colored connectors and two short on/off units with mounting tabs.
Because a linear solenoid controls how hard a clutch applies, a sticky one does not always set a code. It shows up as a shift that is late, soft, harsh or overlapping. Fluid varnish and debris from a worn valve body bore are the usual causes, and every solenoid in the bank has sat in the same fluid for the same miles.
Volvo's own technical journal on this unit (TJ 32169) addresses the rough N-D and 5-4 complaint with an adaptation reset first, which is a reminder that not every harsh shift is a dead solenoid.
Start with the fluid level and condition, then clear and reset adaptations and drive it. If the complaint comes back, read live data and stored codes, then test the solenoids at the case connector. TransGo's TF80SC instructions give 5 to 7 ohms across each linear solenoid and no continuity from either pin to the solenoid body. Our guide on testing a transmission solenoid with a multimeter walks through the meter work, and Aisin harsh or delayed shifts covers the other causes to rule out. Note that a good resistance reading does not prove a linear solenoid is clean inside, which is why the whole set is usually replaced.
The listing covers 2005-2016 Citroen, Peugeot, Saab, Fiat and Renault models built with the TF-80SC / AM6 six-speed, manufacturer reference TF80-SC. The same solenoid layout is used in the Volvo, Ford and Mazda versions of the gearbox, but connector colors and some valve body revisions changed over the years. Compare the connector shapes and colors in the photo to yours, or send us your year and VIN before ordering. Browse every Aisin part we carry on the Aisin transmission parts page.
If the bores in the valve body are worn, new solenoids will only help for a while. In that case a complete TF-80SC valve body assembly is the better repair, and a high-mileage unit that is already slipping needs the AF40 overhaul kit instead.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The listing covers 2005-2016 Citroen, Peugeot, Saab, Fiat and Renault models with the TF-80SC / AM6 / AF40-6 six-speed automatic. Volvo, Ford and Mazda versions share the solenoid layout, but connector details changed by year, so compare the photo or send us your year and VIN.
Six are linear pressure-control solenoids and two are small on/off shift solenoids. The linear units must go back into the bores they came out of.
Yes. Clear codes, reset the transmission adaptive values with a scan tool that supports your make, then drive through all six gears so the control module relearns shift timing.
TransGo lists about 5 to 7 ohms across the two pins and no continuity from either pin to the solenoid body. A solenoid that fails either check is bad, but one that passes can still stick mechanically.
If fresh solenoids and a proper adaptation reset do not cure flare or harsh shifts, the valve body bores are likely worn and a complete valve body assembly is the lasting fix.
