The middle part of the muffler Nissan Terrano - this is one of those elements that the owner remembers only when it starts to “sing” or burns out. Meanwhile, not only comfort (noise level), but also engine performance, and also environmental indicators car. Unlike the front can or resonator, the middle part more often suffers from corrosion due to condensation, and its replacement requires precise selection of the part - an error in selection will lead to incompatibility in fasteners or pipe diameters.

In this article we will analyze all about the middle part of the muffler Terrano: how to determine that it is out of order, which part numbers are suitable for different years of manufacture (including restyled models), and why you should not skimp on the quality of spare parts. And also - step-by-step instructions for replacement with nuances that are not discussed in the services, and a comparison of prices for the original vs analogues from Bosal, Walker and other brands.

Signs of a malfunctioning middle part of the muffler

The first signal about problems with the middle part is change in exhaust sound. But there are other, less obvious symptoms that many attribute to the “age of the car.” For example, if Terrano began to consume more fuel for no apparent reason, the culprit may be a burnt out or clogged middle resonator. The fact is that a violation of the tightness of the exhaust system leads to back pressure drop, and this affects the operation of the engine.

Look out for these signs:

  • 🔊 Loud banging or "booming" during acceleration - indicates burnout of the partitions inside the resonator.
  • 💨 Smoke from underneath (not from the exhaust pipe!) - a sign of a crack in the middle part of the housing.
  • 🛠️ Body vibration at idle speed - may indicate loose fastenings or destruction of internal elements.
  • 🚗 Exhaust smell in the cabin - a dangerous symptom indicating depressurization of the system.

The middle parts of the muffler are especially vulnerable Terrano with a mileage of 150,000 km - due to the accumulation of condensation in winter and reaction with salts on the roads. On models from 2014 to 2017, there is often a defect in the welds at the junction of the pipe and the resonator body - this is a “disease” of the batch supplied to the Russian market.

⚠️ Attention! If you ignore the cracks in the middle part, over time corrosion will “eat” the metal to holes, and exhaust gases will begin to penetrate into the cabin through the floor. This is dangerous due to carbon monoxide poisoning - especially when driving in traffic jams.

Article numbers and compatibility: what is suitable for Nissan Terrano

Selecting the middle part of the muffler for Terrano complicated by the fact that the part differs depending on the year of manufacture, engine type and even the sales market (European and Asian versions may have different fastenings). Original spare parts from Nissan go under the articles:

Model and year Original article Analogs (brand + article) Notes
Terrano 2014–2017, 1.6 l 205B0-4M50A Bosal 254-1036, Walker 21945 Suitable for versions with catalytic converter
Terrano 2018+, 2.0 l 205B0-4M51A Magnetti Marelli 143700330000, Eberspächer 934553 Extended pipe, different flange diameter
Terrano Restyle (from 2020) 205B0-4M52A SASIC 205B04M52AX, FM 102-0146 With additional fastening to the subframe

When choosing an analogue, pay attention to:

  • 🔧 Pipe diameter - must match the original (usually 50–55 mm for Terrano).
  • 📏 Length and shape — some analogues may be shorter, which will lead to tension in the system.
  • 🔩 Fastening type - flange or clamp (on restyled models a combined version is often used).

Before purchasing, be sure to check the vehicle's VIN code - this will help avoid mistakes. For example, details for Terrano with engine HR16DE not suitable for version with MR20DD, even if the years of manufacture are the same.

📊 Which brand of mufflers do you prefer?
  • Original (Nissan)
  • Bosal
  • Walker
  • Magnetti Marelli
  • Other

Replacement cost: original vs analogues

The price of the middle part of the muffler for Nissan Terrano varies from 3,500 to 15,000 rubles - depending on the brand and type of part. Original spare parts from Nissan will cost 10,000–15,000 rubles, but their main advantage is guaranteed compatibility and service life (on average 80–100 thousand km). Analogues are cheaper, but it is important not to run into a fake: for example, parts from Bosal or Walker They last almost as long as the original, but no-name options from China can burn out after 20 thousand km.

Price breakdown by brand (for 2026):

  • 💰 Original (Nissan) — 10,000–15,000 ₽ (see the table above for articles).
  • 💰 Bosal — 5,500–7,000 ₽ (good price/quality ratio).
  • 💰 Walker — 6,000–8,500 ₽ (reinforced models with anti-corrosion coating).
  • 💰 Magnetti Marelli — 7,000–9,000 ₽ (Italian quality, but rarely counterfeited).
  • 💰 FM/SASIC — 3,500–5,000 ₽ (budget option, resource ~50 thousand km).

The cost of replacement work in the service ranges from 1,500 to 3,000 rubles. However, many owners Terrano change the middle part yourself: the process does not require special tools (a jack, 13-17 wrenches and WD-40 for rusty bolts are enough). The main difficulty is detaching stuck clamps, especially if the machine was operated in high humidity conditions.

⚠️ Attention! When purchasing an analogue, check availability internal perforation pipes - cheap models often do not have this, which leads to rapid burnout. Original and high-quality analogues (for example, Walker) have a perforated pipe for better noise reduction.

Step-by-step instructions for replacing the middle part of the muffler

Replacing the middle part with Nissan Terrano takes about 1–1.5 hours if you have the tools. The main thing is to pre-treat all threaded connections with penetrating lubricant (for example, WD-40 or Liqui Moly Rostoff), since bolts often stick. If the exhaust system is heavily rusted, you may need a grinder to cut off the old clamps.

What you will need:

Open-end wrenches 13, 14, 17|Sockets with extension|Jack and stops (or inspection hole)|Penetrating lubricant (WD-40)|New clamps (if old ones are rusty)|Exhaust sealant (e.g. DoneDeal)|Gloves and safety glasses-->

Sequence of actions:

  1. Preparation. Drive the car into the pit or lift it on a jack (be sure to secure it with stops!). Apply lubricant to all middle joints and let sit for 10-15 minutes.
  2. Removing the old part. Unscrew the clamps connecting the middle part to the front can and the resonator. If the bolts do not budge, cut them off with a grinder (but carefully so as not to damage the adjacent pipes!).
  3. Cleaning of seats. Remove rust and dirt from flanges and pipes with a wire brush. Check the condition of the gaskets - if they are worn out, replace them.
  4. Installation of a new part. Place new clamps on the connecting pipes, then install the middle section, tightening the fasteners crosswise (to avoid distortion). Apply sealant to joints to prevent leaks.
  5. Check. Start the engine and check for exhaust leaks. Pay attention to the sound - it should be smooth, without popping.

If after replacement there is whistling or hissingMost likely there is a leak somewhere. Check the clamps and joints - you may need to tighten the fasteners or add sealant.

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Before installing the new middle part, lubricate the bolt threads with graphite lubricant - this will facilitate future replacement and protect against corrosion.

Common replacement mistakes and how to avoid them

Even experienced car owners sometimes make mistakes when replacing the middle part of the muffler with Terrano. Here are the most common of them - and how not to repeat them:

1. Ignoring the state of pine elements. If the middle section is rusty, there's a good chance the front bank or resonator will need replacing as well. By installing a new part on a worn-out system, you risk encountering leaks in a couple of months. Solution: Inspect the entire exhaust system for corrosion and cracks.

2. Using old clamps. Rusty or deformed clamps will not provide a tight fit, which will lead to gas leaks. Solution: always install new clamps (they are inexpensive - 200–400 rubles per set).

3. Incorrect tightening of fasteners. If you overtighten the bolts, you may damage the flanges or strip the threads. If you don't tighten it enough, there will be a backlash. Solution: tighten the clamps with a force of 20–25 Nm (use a torque wrench).

4. Lack of sealant. Many people skip this step, but the sealant prevents moisture from penetrating the joints, which extends the life of the system. Solution: use a high temperature sealant (eg Permatex Ultra Copper).

5. Buying a part without checking the article number. As already mentioned, the middle parts for Terrano vary by year and engine. Solution: check the VIN code or catalogs Nissan before purchasing.

What happens if you install the wrong size middle part?

If the pipe diameter of the new part is smaller than the original one, this will create excess back pressure, which will lead to a loss of engine power (up to 5–7%) and an increase in fuel consumption. If the diameter is larger, the sound insulation will deteriorate and the exhaust will become louder. In addition, a mismatch in length can cause tension in the system, which will lead to cracks at the welding points.

How to extend the life of the middle part of the muffler

The middle part of the muffler Nissan Terrano on average it lasts 60–100 thousand km, but this period can be increased if you follow several rules. The main enemy of metal is condensate, which accumulates inside the resonator and leads to corrosion. This is especially true for cars that are operated over short distances (for example, trips to the store and back), since the system does not have time to warm up and dry out.

Care Tips:

  • 🔥 Warm up your car before driving (at least 2-3 minutes) so that the condensation evaporates.
  • 🚿 Clean the exhaust system once every 2-3 months (especially in winter) to remove salt and dirt. Use special cleaners (for example, Liqui Moly Auspuff-Reiniger).
  • 🛠️ Inspect the muffler periodically for rust. If you notice red spots, treat them with an anticorrosive agent (for example, Dinitrol 494).
  • 🚗 Avoid driving through deep puddles — sudden cooling of hot metal accelerates corrosion.
  • 🔧 Check the fastenings once every 10,000 km - loose clamps lead to vibrations and cracks.

If you do a lot of off-road driving, consider installing stainless middle part (for example, from Remus or Sprint). It costs more (from 12,000 rubles), but will last 2–3 times longer than the standard one.

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Regular washing of the exhaust system and anticorrosive treatment increases the service life of the middle part of the muffler by 30–40%.

FAQ: Frequently asked questions about the middle part of the muffler Nissan Terrano

Is it possible to drive with a burnt out middle part of the muffler?

Technically possible, but not advisable. A burnt part leads to:

  • Increased noise (which is uncomfortable and may attract the attention of the traffic police).
  • Exhaust gases entering the cabin (hazardous to health!).
  • An increase in fuel consumption by 5–10% due to a violation of back pressure.

If the crack is small, you can temporarily seal it, but this will not solve the problem for long.

How to distinguish the original middle part from a fake?

Original parts from Nissan have:

  • Clear marking of the article (embossed with a laser, not paint).
  • Smooth welds without beads.
  • Protective coating (usually matte gray).
  • Complete with gaskets and new clamps.

Counterfeits are often lighter in weight and have rougher colors.

Do I need to change gaskets when replacing the middle part?

Yes, definitely! Old gaskets (especially metal ones) are deformed during dismantling and will not provide a tight seal. New gaskets are inexpensive (100–300 rubles), but their absence will lead to gas leaks.

Is it possible to install the middle part from another car?

Theoretically it is possible, but only if they match:

  • Pipe diameter.
  • Type of fastenings (flange/clamp).
  • Body length and shape.

For example, the middle parts from Renault Duster (same platform) may fit, but some modifications are required on the fastenings. It’s better not to experiment - buy a part intended for Terrano.

How long will the new middle section last?

Service life depends on:

  • Quality of the part (original - 80-100 thousand km, analogues - 40-60 thousand km).
  • Operating conditions (city/highway, climate).
  • Maintenance (washing, anti-corrosion treatment).

In northern regions with abundant use of reagents, the resource is reduced by 20–30%.