The 2006 BMW Z4 has 3 recalls, all centered on the same fire risk: the heater inside the positive crankcase ventilation valve can short circuit and overheat, potentially starting a fire even when the car is parked and off. This issue affects vehicles equipped with the N52 or N52K six-cylinder engine. Prior repair attempts did not fully resolve the problem, and the current remedy supersedes earlier campaigns addressing the same defect.
At a glance
What can fail
The PCV valve heater in the engine can short circuit and overheat due to a manufacturing defect in N52 and N52K engines.
What the fix does
A dealer will install a wire harness repair kit to fix the heater circuit.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The heater for the positive crankcase ventilation valve may short circuit, potentially causing an electrical fault.
What the fix does
Dealers will install a new electrical wiring harness with fuse protection for the PCV valve heater at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The heater for the positive crankcase ventilation valve may short circuit, potentially causing it to malfunction.
What the fix does
Dealers will replace the PCV valve heater at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
