Bulkhead Workshop › Land Rover models › Service intervals › Borg Warner transfer box & viscous coupling check

Land Rover borg warner transfer box & viscous coupling check: how often, by model

The borg warner transfer box & viscous coupling check interval for 3 Land Rover and Range Rover models and engines, whichever comes first of the miles and the time. Choose yours for the parts, genuine part numbers, tools and step-by-step guide.

Range Rover Classic (1970–96)

Model and engine	How often
3.5 / 3.9 / 4.2 V8 fuel injection 1985–1996	every 24,000 mi or 2 yrs

Range Rover P38 (1994–2002)

Model and engine	How often
4.0 / 4.6 V8 1994–2002	every 24,000 mi or 2 yrs
2.5 DSE diesel (BMW) 1994–2002	every 24,000 mi or 2 yrs