MajorCommonTransmission

Honda CR-V: DualPump II Rear Differential Wrong-Fluid Failure

DualPump II Rear Differential Wrong-Fluid Failure is a common transmission fault on the Honda CR-V on the 2002–2006 cars, and we rate it major. Putting it right costs $600 to $3,500 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 59 documented faults on the Honda CR-V.

Vehicle: Honda CR-V
Years: 2002–2006
Fuel: petrol
System: Transmission

This page covers the Honda CR-V as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Honda CR-V faults59 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Differential yet. We would rather show none than show a picture of a different part.

What goes wrong

The RD5/RD7 generation uses the Honda DualPump II AWD system requiring Honda Dual Pump Fluid II specifically. Using generic ATF or any incorrect fluid causes the clutch pack to overheat, generating metallic debris that destroys the pump mechanism and rear differential internals. This is the most common cause of AWD failure in this generation and is extremely well-documented in the Honda service community.

What you would notice

Chattering or clunking from rear on tight low-speed turns
Vibration or shudder on cornering
AWD system effectively non-functional
Fluid leaking from rear differential housing

How to check it

Where to look. Rear differential housing, beneath rear of vehicle

Drive in a tight slow circle and listen for chattering from the rear differential.
Ask specifically whether Honda Dual Pump Fluid II was used — not generic ATF.
Check service records for documented rear differential fluid changes.
Inspect under the vehicle for fluid leaks at the rear differential cover.
A metallic sheen in drained fluid indicates internal damage has already occurred.

Parts involved: Differential.

What it costs to put right

$600 to $3,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

“Has the rear differential fluid been changed and what specific fluid was used?”
“Has the vehicle ever shown chattering or vibration on tight turns?”

Now check the Honda CR-V you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Honda CR-V buyer questions

Is dualpump ii rear differential wrong-fluid failure serious on a Honda CR-V?

We rate it major and common on the Honda CR-V. The RD5/RD7 generation uses the Honda DualPump II AWD system requiring Honda Dual Pump Fluid II specifically. Using generic ATF or any incorrect fluid causes the clutch pack to overheat, generating metallic debris that destroys the pump mechanism and rear differential internals. This is the most common cause of AWD failure in this generation and is extremely well-documented in the Honda service community.

How much does it cost to fix on a Honda CR-V?

$600 to $3,500 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Honda CR-V years are affected?

Our research records this fault on the 2002–2006 Honda CR-V. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Drive in a tight slow circle and listen for chattering from the rear differential. Ask specifically whether Honda Dual Pump Fluid II was used — not generic ATF. Check service records for documented rear differential fluid changes. Inspect under the vehicle for fluid leaks at the rear differential cover. A metallic sheen in drained fluid indicates internal damage has already occurred. Look here: Rear differential housing, beneath rear of vehicle