Removing roof rails Nissan X-Trail T31 (2007–2013) - a task that requires care, especially if the car has additional blood lights or LED spotlights. Owners often encounter this need when preparing to paint, install a new trunk, or perform body repairs. However, incorrect disassembly may result in damage. sealing rubber bands, scratches on the paintwork or even broken fasteners.
In this article we will look at step by step process removal of roof rails, taking into account the features of the model T31, including the nuances of working with headlights that are attached to the roof rails. You will learn what tools you will need, how to avoid common mistakes and what to do if the bolts are stuck or rusting. We will also provide unique data on fastener tightening torques - information that is rarely disclosed even in official manuals.
Preparing for dismantling: tools and safety precautions
Before starting work, make sure you have everything you need. The absence of even one tool can turn a simple procedure into an hour-long torture. Here minimum setwhich will be required:
- 🔧 Socket wrench or socket on
10 mm(basic size of roof rail fasteners) - 🔧 Extension for the key (rails are attached in inconvenient places under plastic panels)
- 🔧 Flathead screwdriver or plastic pick for removing trim
- 🧴 Penetrating lubricant (WD-40, Liqui Moly MoS2) for rusty bolts
- 🧤 Gloves (to avoid scratching the roof and getting your hands dirty)
- 📦 Container for small parts (bolts, washers, rubber gaskets)
Pay special attention headlights, if they are attached to the rails. Their wires often run under the roof sheathing, and accidental tugging can break the contacts. If the headlights are connected to the on-board network via a relay, Disconnect the negative terminal of the battery in advanceto avoid short circuit.
⚠️ Attention: On Nissan X-Trail T31 With factory roof rails, the mounting bolts can be hidden under decorative plugs. Do not try to unscrew them “by eye” - first remove the plastic covers, otherwise you risk tearing off the edges.
- Factory (original)
- Universal (aftermarket)
- With additional headlights
- Without roof rails
Step-by-step instructions: remove plastic covers and plugs
The first stage is access to fasteners. On X-Trail T31 The roof rails are covered with plastic covers, which are secured with latches and double-sided tape. To remove them:
- Start with front part of the railing (from the windshield side). Pry up the pickguard with a flathead screwdriver or plastic pick.
- Gently pull up - the latches should come out of the grooves. Do not use excessive force to avoid breaking the clips.
- Work your way towards the back, gradually releasing the pad. If it “sticks” to the double-sided tape, warm it up with a hairdryer (temperature no higher than
60°C).
Under the covers you will find rubber plugs (usually 4-6 pieces for each rail). They need to be removed to get to the bolts. Use the same pick or tweezers. Be careful: plugs often lose elasticity over time and may break.
Remove all things from the roof (racks, boxes)
Disconnect the battery terminal (if there are headlights)
Remove the plastic roof rail covers
Remove rubber plugs
Treat the bolts with penetrating lubricant (if necessary) -->
Removing mounting bolts: nuances for X-Trail T31
Attaching the roof rails to Nissan X-Trail T31 carried out with bolts M6 with tightening torque 18–22 Nm (data from the service manual Nissan). However, over time, the bolts can rust or “stick”, especially if the car has been driven in high humidity conditions. Here's how to unscrew them:
- 🔩 Start with front bolts - they are usually less susceptible to corrosion.
- 🔧 Use the key extension to reach the rear mounts (they are hidden under the headliner).
- ⚙️ If the bolt does not budge, apply penetrating lubricant and wait 10-15 minutes. Do not try to rip it off by force - you risk tearing off the splines.
- 🔄 Unscrew the bolts in a criss-cross pattern to avoid deformation of the railing.
After removing all the bolts, carefully lift the roof rail. It may stick to the roof due to an old gasket. Pry it with a screwdriver in several places, but do not use metal tools near the headlights - their glass is easily scratched.
⚠️ Attention: On some versions X-Trail T31 (for example, with the package Adventure) the roof rails are secured not only with bolts, but also with adhesive. In this case, you will need a hair dryer to soften the glue.
| Mounting type | Bolt size | Tightening torque (Nm) | Quantity per railing |
|---|---|---|---|
| Main mount | M6 × 20 mm |
18–22 | 4–6 pcs. |
| Headlight mount | M5 × 15 mm |
8–10 | 2–4 pcs. |
| Decorative overlays | Latches/tape | — | — |
Working with headlights: how to disconnect without damage
If additional lights are installed on the roof rails (for example, HELLA 500 or PIAA LP530), they must be turned off before removal. Algorithm of actions:
- Disconnect power connector from the headlight. It can be hidden under heat shrink tubing or electrical tape.
- If the headlight is attached to the rail through a bracket, unscrew the fastening bolts (usually
M5). - Carefully remove the headlight, holding it by the housing and not by the glass. Don't pull the wires!
Pay special attention sealing. On many headlights X-Trail T31 Silicone gaskets are used, which harden over time. If the gasket is cracked, it must be replaced before reinstallation. Otherwise, moisture will get inside the headlight, which will lead to oxidation of the contacts.
What to do if the headlight bolt breaks?
If the headlight bolt breaks off, don't panic. Use an extractor or drill out the bolt with a drill 0.5–1 mm smaller than the thread diameter. After this, cut the new thread with a tap. As a last resort, you can use “cold welding” to secure the new bolt, but this is a temporary solution.
Typical problems and how to avoid them
When dismantling the roof rails Nissan X-Trail T31 owners face several typical difficulties:
- 🔧 Broken splines on bolts - if the head is “slipped”, try putting a rubber gasket on it and unscrewing it with an adjustable wrench. Or use special bits IRWIN for broken bolts.
- 💧 Rust on fasteners - process the bolts WD-40 1–2 hours before work. In advanced cases, a mixture of vinegar and soda will help (apply for 30 minutes).
- 🔌 Damaged headlight wires - if the insulation is cracked, replace the section of wire or use heat shrink tubing.
- 🛠️ Broken plastic clips — they can be purchased separately (item number for X-Trail T31:
77214-4M000).
Another common mistake is losing rubber gaskets under the roof rails. They prevent water from entering the interior and corrosion of the roof. If the gaskets are torn, replace them with new ones (universal ones from 3M or Sika).
Before reinstalling the roof rails, clean the mounting points from old sealant and rust. Apply a thin layer of silicone grease to the bolts - this will make the next dismantling easier.
Reinstallation: tightening torques and sealing
Installing the roof rails is done in the reverse order, but there are several critical nuances:
- Check status rubber gaskets. If they are deformed, replace them.
- Apply sealant (For example, Loctite 574) on the threads of the bolts - this will prevent self-unscrewing.
- Tighten the bolts to 2 stages:
- First, tighten all the fasteners by hand.
- Then tighten with a torque wrench to
18–22 Nm.
After installation, check the operation of the headlights and tightness. To do this, direct a stream of water from a hose onto the roof rails (without strong pressure) and inspect the interior for leaks. If water has leaked out, removal and installation will have to be repeated with a new gasket.
The use of a torque wrench when tightening the roof rail bolts is mandatory! Overtightened fastenings can deform the roof, and loose fastenings will lead to vibrations and noise at speed.
When to contact the service
Although removing the roof rails Nissan X-Trail T31 - a task that is feasible for most car owners; in some cases it is better to trust the professionals:
- 🔧 If the bolts broke or their splines are completely torn off.
- 💡 If they were damaged during dismantling headlight wires or connectors.
- 🚗 If found on the roof traces of corrosion under the roof rails (anti-corrosion treatment will be required).
- 🔩 If roof rails have been installed in an abnormal way (for example, welded to the roof).
The cost of the service will be approx. 1 500–3 000 ₽ (depending on region and complexity). It's cheaper than repairing your roof or replacing broken clips. If you are not confident in your abilities, do not take risks - mistakes when working with a body are costly.
FAQ: Frequently asked questions about dismantling roof rails
Is it possible to remove the roof rails without removing the headliner?
Theoretically yes, but it is extremely inconvenient. Rear mounting bolts X-Trail T31 are located just under the casing, and without removing it you will not be able to access it with a key. The risk of breaking a bolt or scratching the ceiling is too great.
What should I do if there are still traces of rust on the roof after removing the roof rails?
Clean off rust with a metal brush or converter (Tsinkar). Then apply an anti-corrosion primer and cover the area with a protective compound (for example, Molykote). If the corrosion is deep, putty and painting may be required.
What sealant is best to use for roof rail gaskets?
The best option is silicone sealant for automobile glass (for example, Dow Corning 7091). It is elastic, does not flow over time and can withstand temperature changes. Do not use cheap "plumbing" sealants - they can damage the paintwork.
Is it possible to drive without roof rails if headlights were installed on them?
Yes, but it's necessary plug the holes in the roof to avoid leaks. The headlights can be temporarily mounted on a bumper or bracket, but their wires will have to be extended. Please note that without roof rails, aerodynamics may deteriorate at high speeds.
How long does it take to completely dismantle the roof rails?
If you have the tools and experience - approx. 1.5–2 hours. If the bolts are stuck or the headlights are difficult to connect, the process may take a long time. 3–4 hours. Take your time to avoid mistakes.