CVT Nissan Qashqai - one of the most problematic components of the model, especially after 150,000 km. Repair or replacement CVT RE0F10A/RE0F11A requires complete dismantling of the box, and many car owners are faced with the question: how to remove the variator themselves without damaging the associated systems? This article is not just a retelling of the manual, but a collection practical life hacksbased on the experience of service technicians and owners Kashkaev with a mileage of 200,000 km.

We will analyze the process from the preparatory stage to the final assembly, paying attention critical points that 90% of garage mechanics miss: correctly securing the engine when removing the mounts, how to disconnect electrical wiring without the risk of a short circuit, and why you can’t ignore replacing the crankshaft oil seal even during a “clean” dismantling.”. For clarity, we provide fastening diagrams, a tool compatibility table and answers to frequently asked questions - for example, is it possible to do without removing the subframe or how to avoid mistakes P17F0 after reinstallation.

Preparing to remove the variator: tools and conditions

Before you begin dismantling, make sure you have everything you need. This is not a case where you can “make do with what you have at hand.” For Nissan Qashqai J10 (2007–2013) And J11 (2014–2021) Different approaches will be required due to differences in the layout of the engine compartment. For example, on J11 you will have to remove the additional system bracket Start/Stop, if it is installed.

Here minimal set of tools, which you can’t do without:

  • 🔧 Set of sockets with extensions (required availability 10 mm, 12 mm, 14 mm And 17 mm)
  • 🔨 Socket wrench for subframe bolts (preferably with a ratcheting mechanism)
  • 🛠 Torque wrench (critical torque for tightening engine mounts - 60–80 Nm)
  • 🔩 Puller for axle shafts (an alternative is a pry bar with a soft tip)
  • 📦 Sealant Loctite 574 (for machining the variator flange during reassembly)
  • 🔋 Multimeter (to check the solenoid circuits after disconnecting the connectors)

Also prepare consumables, which will have to be replaced in any case:

  • 🛢 Oil in the variator (Nissan CVT Fluid NS-3, ~8 liters for a complete replacement)
  • 🔄 Coarse filter (catalog number 31726-1XF0A)
  • 🛡 Crankshaft oil seal (even if it “does not leak” - when the variator is removed, its integrity is compromised)
  • 🔧 Bolts securing the variator to the engine (disposable, number 11026-5M60A)
⚠️ Attention: If you work in a garage without a lift, use adjustable engine mounts (For example, Lisle 61000). Hanging the motor on a cable or chain without fixing it will lead to displacement of the supports and the risk of damage to the cooling system pipes.
📊 What experience do you have with CVTs?
  • Never filmed, just studied the theory
  • Filmed 1-2 times with an assistant
  • Repaired CVT myself 3+ times
  • I work in service, this is my specialty.

Procedure for removing the variator: step-by-step algorithm

The dismantling process takes 8–12 hours at the first experience and 4–6 hours for a trained master. We will break it down into steps indicating critical pointswhere mistakes are most often made.

Step 1. Disconnecting the battery and preparing the electrical systems

Remove the negative terminal from the battery and wait until the capacitors are completely discharged (10–15 minutes). This will prevent a short circuit when the solenoid connectors are disconnected. Then:

  1. Disconnect the connector TCM (variator control unit, located under the air duct).
  2. Remove the chip from the speed sensor on the box (it is secured with a plastic clip - do not break it!).
  3. Disconnect power to the starter (bolt 12 mm) to gain access to the upper variator bolts.

Step 2. Dismantling drives and axle shafts

The main thing here is not to damage the anthers CV joints. Use a puller or carefully tap the axle shafts with a hammer through a wooden spacer. Please note:

  • 🔧 The left axle shaft is removed only after unscrewing the hub nut (32 mm, tightening torque for reinstallation - 250 Nm).
  • 🛑 The right axle shaft has an additional lock on the box - it needs to be pressed in with a screwdriver before removal.
  • 🔄 After removing the axle shafts, cover the holes in the variator with a clean rag to prevent dirt from getting in.

I photographed the location of all connectors and tubes|Marked the subframe mounting bolts (they are of different lengths!)|Checked for the presence of a new crankshaft oil seal|Prepared a container for draining oil from the variator (at least 5 liters)|Installed racks under the engine and gearbox-->

Step 3: Removing the subframe and engine mounts

This is the most time-consuming stage. On Qashqai J11 subframe is attached 6 bolts (4 front, 2 rear), and on J10 — 8 bolts. Important:

  • 🔧 The rear subframe mounting bolts have different lengths - you can’t confuse them!
  • 🛠 Before removing the subframe, unscrew the steering rack from the body (2 bolts 14 mm).
  • 🔩 Engine mounts (hydraulic cushions) cannot be removed at the same time - first unscrew the right one, then the left one, supporting the motor with a stand.
⚠️ Attention: If you do not plan to replace the clutch (torque converter), do not drop the variator when removing it! The impact can deform the pump blades, causing vibrations at speed. 80–100 km/h.

Common mistakes and how to avoid them

Even experienced craftsmen make mistakes when working with CVTs Nissan. We have collected TOP-5 errorswhich lead to expensive repairs:

Error Consequences How to avoid
Incorrect engine fixation Skewed supports, cracks in the pan or radiator Use adjustable stands with rubber pads
Forgot to disconnect the oil temperature sensor connector Error P17F0, the variator goes into emergency mode Check all connectors connection diagram
Reusing CVT Mounting Bolts Loose fastening, box play Bolts 11026-5M60A - disposable!
The crankshaft seal was not replaced Oil leak in the variator, clutch contamination Oil seal (11926-1XF0A) must be changed
CVT cooling radiator not flushed Oil overheating, accelerated belt wear Rinse special liquid (For example, Liqui Moly CVT Reiniger)

The moment with torque converter. When removing the variator, it may remain on the crankshaft or “stick” in the box. If it is forcibly pulled off, the pump splines may be damaged. Correct algorithm:

  1. Rotate the crankshaft by the pulley bolt to ensure that the torque converter is not blocked.
  2. If it “sits” tightly, gently rock the variator in a horizontal plane.
  3. Use special puller (For example, OTC 6526) or a homemade device made from a steel plate.
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If the variator “does not move” from its seat, do not hit it with a hammer! Spray the mounting bolts with WD-40 and wait 10 minutes - often the problem is soured threads, not the assembly itself.

Schemes and nuances for different generations of Qashqai

The design of the variators J10 (2007–2013) and J11 (2014–2021) has key differences. For example, on J11 installed additional CVT cooling radiator, which is attached to the main radiator. It must be removed separately, after draining the liquid from the system.

Below is a comparison table of fasteners:

element Qashqai J10 (2007–2013) Qashqai J11 (2014–2021)
Number of variator mounting bolts 12 pcs. (12 mm) 14 pcs. (10 pcs. 12 mm + 4 pcs. 10 mm)
Engine mount type Rubber-metal Hydraulic (replacement is required for any dismantling)
Speed sensor One connector, location - top of the box Two connectors (main + backup for 4WD)
Oil drain plug Aluminum, tightening torque 35 Nm Steel, tightening torque 45 Nm

On Qashqai J11 with all-wheel drive Additionally, you will have to disconnect the driveshaft. To do this:

  1. Mark with a marker the position of the flanges relative to each other (to maintain balance).
  2. Unscrew the 4 mounting bolts (14 mm) and remove the shaft.
  3. Cover the opening in the transfer case with film to prevent dust from entering.
What to do if the variator mounting bolt breaks?

If the bolt breaks off when unscrewing:

1. Drill a hole with a diameter of 3–4 mm in the center of the fragment.

2. Screw into it extractor (left drill) and carefully turn it out.

3. If the fragment remains, use tap for cutting a new thread (but this is a temporary solution - the bolt still needs to be replaced with a new one).

4. For the future: treat the bolts before unscrewing penetrating lubricant (For example, PB Blaster) and use an impact wrench.

Reassembly: What you need to know

Installing a variator is a process no less important than removing it. Here are the key points:

1. Preparing the seat

  • 🧹 Clean the engine flange of old sealant and oil (use bright spray).
  • 🔧 Apply new sealant Loctite 574 thin layer (thickness no more 0.5 mm).
  • 🛡 Install a new crankshaft oil seal, lubricating it with thick lubricant (for example, Molykote G-Rapid Plus).

2. Installation of the variator

Lift the box carefully, aligning the bottom studs first, then the top ones. Please note:

  • 🔩 Tighten the fastening bolts to 3 stages: first by hand, then 20 Nm, finally - 50–60 Nm.
  • 🔧 Before installing the torque converter, check the play of its bearing (the permissible value is no more than 0.5 mm).
  • 🛢 After installation, fill in exact amount of oil (for Qashqai J10 — 7.8 l, for J11 - 8.2 l).

3. Check after assembly

After starting the engine:

  • 🔍 Check for leaks from under the crankshaft oil seal and the variator flange.
  • 📊 Reset CVT adaptations via diagnostic scanner (For example, Launch X431).
  • 🚗 Take a test drive and check shifts in all modes (D, R, Manual).
⚠️ Attention: If after assembly there is hum or vibration at speed 40–60 km/h, most likely you forgot to install damper disc between the engine and the variator. Its absence leads to imbalance and accelerated wear of bearings.
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The most common mistake during reassembly is incorrect tightening torque of the subframe bolts. On the Qashqai J11 it should be 90–110 Nm, not 60–80 Nm as on the J10. Under-tensioning leads to play in the box, over-tensioning leads to frame deformation.

Frequently asked questions after removing the variator

Is it possible to drive without a subframe while the CVT is being repaired?

No! The subframe is not only a mount for the box, but also body strength element. Without it, the load on the side members increases by 2–3 times, which can lead to their deformation. If you need to move your car in the garage, use rear trolley or temporary supports.

How to check if the torque converter is damaged during removal?

Spin it by hand - it should spin smoothly, without jamming. Also check:

  • Play in the axial direction (permissible up to 1 mm).
  • Integrity of the pump blades (visually through the bell hole).
  • No metal shavings on the tray magnets.

If in doubt, replace the torque converter with a new one (part number - 31397-1XF0A).

What should I do if, after installing the variator, error P17F0 is on?

Error P17F0 (“Oil temperature sensor circuit malfunction”) occurs in 80% of cases due to:

  • Unconnected or damaged sensor connector.
  • Short circuit in the wiring harness (check with a multimeter).
  • Unreset variator adaptations (requires diagnostic scanner).

Solution: disconnect the battery for 10 minutes, check the sensor circuit, reset the errors via Nissan Consult or Launch.

Do I need to change the oil in the variator if I only removed it to repair the engine?

Yes! Even if the variator has not been disassembled, when removed, some of the oil leaks out and air enters the system. Minimum — replace the coarse filter and add fresh oil. Optimally, a complete replacement with flushing of the radiator.

Is it possible to install a CVT from a Qashqai J11 on a J10?

Technically no, despite the external similarity. Main differences:

  • Different mounts to the engine (the mounting holes are different).
  • Electronic control units (TCM) are incompatible.
  • On J11 a reinforced torque converter is used.

An exception is if you are ready to modify the fastenings and flash ECU under a new box, but this is not economically feasible.