Remanufactured ZF 8HP45 valve body with new solenoids, bench-tested, for BMW F30/F10/F25/F15, Jeep WK2 3.6L, Jaguar XF/XJ and Discovery 4.
A BMW, Jeep Grand Cherokee, or Jaguar built around the ZF 8HP45 eight-speed that hangs on the 2-3 shift, bangs into gear from a cold start, shudders under light throttle, loses reverse, or throws a P07xx solenoid code usually has a worn valve body, not failing clutches. This remanufactured 8HP45 valve body ships with new solenoids already installed and hydraulically bench-tested, so it goes in as a complete, tested assembly with no setup work.
The 8HP45 is the 450 Nm-rated member of the ZF eight-speed family, used behind the BMW F30 328i and 335i, F10 528i and 535i, X3 F25, X5 F15, the 2011-2015 Jeep Grand Cherokee WK2 3.6L, Jaguar XF and XJ, and the Land Rover Discovery 4. Inside the transmission, the valve body is the hydraulic routing center: it directs line pressure through precision bores and spool valves to apply each clutch and band, and it carries the shift and pressure-control solenoids the computer uses to time every shift. Years of unfiltered debris wear the bores and solenoid screens, which destabilizes line pressure and produces the harsh, late or flared shifts described in our ZF8HP common problems guide.
Pull codes and check fluid level and condition first - a low or burnt fluid level produces similar symptoms and costs nothing to rule out. Our ZF8HP valve body wear guide walks through the per-valve symptom list for this family, including the main pressure regulator valve and the TCC valve, so you can match your complaint to the worn bore before paying for an assembly swap. If the problem is isolated to one clutch circuit or a single stored code, our EPC solenoid symptom guide covers testing an individual solenoid rather than replacing the whole valve body.
This valve body fits the ZF 8HP45 as installed in the BMW F30 328i and 335i, F10 528i and 535i, X3 F25, X5 F15, the Jeep Grand Cherokee WK2 3.6L from 2011 to 2015, Jaguar XF and XJ, and the Land Rover Discovery 4. The 8HP45, 8HP50, and 8HP70 look nearly identical but are not interchangeable - this unit does not fit the updated 8HP50 or the high-torque 8HP70. Match your transmission tag code and original part number before ordering, or send us your year and VIN to confirm. See the full ZF 8HP parts collection for the rest of what we stock for this family.
Installation is from underneath with the pan and filter off - this is not a dry-fit part, so plan on dropping the pan, replacing the filter, and doing a full fluid fill with ZF Lifeguard 8 ATF afterward, set to the correct level at operating temperature. A BMW 8HP oil pan and filter kit covers that service in one part if your existing pan or filter is due. Reset the adaptations with a scan tool once the new valve body is in and the fluid is filled correctly - skipping the relearn is one of the most common reasons a freshly installed valve body still shifts rough for the first several miles. If the clutch packs themselves show wear alongside the valve body symptoms, pair this with an 8HP45 clutch module rather than replacing the valve body alone.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. The 8HP45, 8HP50 and 8HP70 look nearly identical but are not interchangeable - this unit is built for the 450 Nm-rated 8HP45 only. Match your transmission tag code and original part number, or send us your year and VIN, before ordering.
ZF Lifeguard 8 ATF. Set the level at operating temperature after the fill, not at room temperature, since the correct level changes with fluid expansion.
Harsh or flared shifts, a shudder under light throttle, lost reverse, and a stored P07xx solenoid code all point to the valve body first. A slipping or burnt-fluid smell with no codes points more toward the clutch packs - our ZF8HP common problems guide covers both patterns.
Yes. Reset the transmission adaptations with a scan tool after the fluid fill. Skipping this step is the most common reason a freshly installed valve body still shifts rough for the first several miles.
Yes - every unit is disassembled, cleaned, fitted with new solenoids, and hydraulically bench-tested before it ships, so it installs as a complete assembly.
