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BMW 7 Series 730Ld common faults.

2005–2008, saloon, diesel, 231 HP.

The fault list covers: M57D30TU2 engine, ZF6HP-BMW, ZF6HP26 transmission.

What you save stays on this device only. My saves

1 fault write-ups. Important. No recall on the list.

If you know the year, pick it. Faults for other years drop out of the list.

Before you buy

Known faults

1 important faults

ZF 6HP automatic: mechatronics connector sealing sleeve leaks

expensive

In the ZF six speed automatic (BMW codes GA6HP19Z / GA6HP26Z) the electrical connector of the valve body control leaves the gearbox housing through a plastic sleeve. That sleeve and its seals age, and they let oil through.

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The symptom is irregular shifting, a gear slipping at higher revs, limp mode, a drivetrain fault code and a message on the display. The cause is the same in each case: the leak drops the hydraulic pressure, and the valve body cannot close the clutches with enough force.

The sleeve can be replaced without removing the gearbox, you only have to drop the oil pan. If it leaks for a long time, the slipping clutch and the overheating pump take the inside of the gearbox with them, and from then on it is a rebuild. The factory calls the oil a lifetime fill, but in practice the sleeve wears out around 60,000 to 70,000 miles, roughly 100,000 to 115,000 km.

between 100,000 and 200,000 km

What to check

  • On a lift look at the right side of the gearbox housing, above the oil pan: a wet, oily connector is the characteristic picture
  • On the test drive watch the shifts cold and warm: jerking, delay, slipping at higher revs
  • Ask for a fault code read from the gearbox controller: gear ratio fault, pressure regulation
2 more steps in the write-up

Checklist

BMW 7 Series 730Ld

First what you would check on any car. Then the faults of this model.

Before you buy

Checklist

The printed sheet starts with what you would check on any car. What you tick stays on this device only.

On every car

Ask the owner

Faults of this model

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Engine and transmission

1 engines · 2 transmissions

M57D30TU2 · 3.0d/xDrive30d

173–210 kW (235–286 HP) · diesel

ZF6HP-BMW · 6-speed automatic, longitudinal (ZF 6HP19/21, BMW GA6HP)

automatic · 6 speed

Torque limit450 Nm
MakerZF

We built the code from the model and the gear count. The factory sheet does not state it. More than one transmission is possible. The gear count does not tell them apart. The code is on the side of the transmission.

Variant data

What is in this version

Factory data

Trim
730Ld
Body
saloon
Fuel
diesel
Transmission
automatic
Engine size
2993 cc
Power
170 kW (231 HP)
Drive
RWD
Production
2005–2008

Factory service interval

The manufacturer specifies this for this version. Of the mileage and the time, the one that comes first is the one that counts.

  • Air filter

    • 60,000 km or 4 years

  • Cabin (pollen) filter

    • 30,000 km or 2 years

  • Brake fluid change

    • first: 3 years, then 2 years(first change at 3 years, then every two years)

  • Engine oil and oil filter (BMW condition-based service)

    • LongLife25,000 km or 2 years

  • Automatic gearbox oil (ZF 8HP / 6HP)

    • 160,000 km

  • Fuel filter, diesel

    • 60,000 km or 2 years
All E65 versions

Information, not an expert opinion

We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.

  • A fault on the list does not mean the car you are looking at has it.
  • A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
  • You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.
Details in the terms