Replacing the rear engine mount on a Nissan Almera Classic: when is it needed and how to do it right

Rear engine mount Nissan Almera Classic - one of those elements whose malfunction drivers often find out too late. Vibrations on the body, knocking noises when starting from a standstill or sudden braking, and sometimes a noticeable misalignment of the power unit - all these are signals that the rubber-metal support element requires replacement. Unlike the front supports, the rear cushion is Almera Classic (especially in the back B10 And N16) experiences increased loads due to the design features of the engine mount.

Many car owners put off repairs, attributing symptoms to “trifles,” but ignoring the problem is fraught with serious consequences: from damage to pipes and wiring to deformation of the subframe. In this article we will look at how self-diagnose a malfunction of the rear airbag, what tools and spare parts will be needed for replacement, and we will also describe in detail the repair process, taking into account typical errors. We will pay special attention to the nuances for engines GA16DE And QG15DE, which were installed on Almera Classic different years of manufacture.

Signs of wear on the rear engine mount

Rear engine mount on Nissan Almera Classic performs two key functions: dampens vibrations and keeps the power unit in the correct position. When it wears out, symptoms appear gradually, but they cannot be ignored. Here are the most common signs:

• 🔊 Increased vibrations on the body, especially at idle or when driving at low speeds. Vibrations can be transmitted to the steering wheel and pedals.
• 🚗 Jerks when starting off or changing gears (especially noticeable on a manual transmission). This is due to the fact that the engine is displaced relative to the box.
• 💥 Knocks or clicks in the area of the rear of the engine during a sudden start, braking or driving over uneven surfaces. The sound may resemble metal hitting metal.
• 🔧 Visual engine misalignment: if you open the hood and look at the gap between the engine and the engine compartment, you will notice that the engine “falls” back.

On Almera Classic with engine QG15DE (1.5 l) rear cushion wear often appears earlier than on the version with GA16DE (1.6 l), due to the lighter weight of the power unit and more severe operating conditions. It is important to note that other problems can cause similar symptoms: front bearing wear, transmission malfunctions or crankshaft imbalance. Therefore, before replacing the rear airbag, it is recommended to conduct a comprehensive diagnosis.

Diagnostics: how to check the rear airbag

Before proceeding with the replacement, you need to make sure that the problem is in the rear support. You can carry out diagnostics yourself, without resorting to the help of a service station. Here are two main methods:

1. Visual inspection. Raise the car on a lift or drive it into a viewing hole. Pay attention to the condition of the rubber part of the cushion: cracks, tears or peeling from the metal body are clear signs of wear. Also check for traces of oil on the support (this may indicate a leak from the crankshaft rear seal, which will speed up the deterioration of the rubber).
2. Checking the backlash. Ask an assistant to start the engine and engage a gear (on a manual transmission) or shift the selector to D (automatically). Then press the gas sharply and observe the behavior of the engine. If it noticeably "bounces" or moves back, the cushion needs to be replaced. On Almera Classic With automatic transmission, this test is especially relevant, since the torque converter creates additional load on the support.

For more accurate diagnosis, you can use a mount. Pry the engine from the rear cushion and try to move it up and down. If the play exceeds 5–7 mm, the support is worn out. On cars with a mileage of more than 150 thousand km, the rear cushion often “gets tired” even in the absence of visible damage - the rubber loses its elasticity and stops shock-absorbing.

⚠️ Attention: On Nissan Almera Classic With air conditioning, access to the rear airbag may be difficult due to the compressor. Do not attempt to remove the support without first removing the compressor drive belt as this may damage it.

Selection of spare parts: original vs analogues

When replacing the rear engine mount with Almera Classic The car owner is faced with a choice: buy an original part or an analogue. Original pillow from Nissan has an article number 11220-4M000 (for engines GA16DE And QG15DE) and costs from 3,500 to 5,000 rubles depending on the region. However, there are worthy analogues on the market that will cost less, but will not be inferior in quality.

Manufacturer	Article	Price, rub.	Features
Nissan (original)	11220-4M000	3 500–5 000	Guaranteed quality, long service life, but high price.
Febi (Germany)	22616	2 200–2 800	Good price-quality ratio, suitable for most versions Almera Classic.
Sasic (South Korea)	2005030	1 800–2 300	A budget option, but the tires may be harder than the original.
Corteco (Portugal)	2005030	2 500–3 000	A high-quality analogue, often used at service stations.

When choosing an analogue, pay attention to rubber material - it should be elastic, without visible pores. Cheap pillows (for example, from NoName-manufacturers) often have too hard rubber, which leads to increased vibrations. Also check matching of fastenings — on some analogues, the bolt holes may be offset by 1–2 mm, which will complicate installation.

Necessary tools and preparation for work

Replacing the rear engine mount with Nissan Almera Classic does not require specialized equipment, but will require a set of standard tools. Here's what you'll need:

• 🔧 Keys and heads: 14, 17, 19 mm spanners, socket heads with an extension (a 14 mm socket with a long extension for the bottom bolt is especially useful).
• 🔨 Jack and supports: a hydraulic jack for lifting the engine (you can use a bottle one) and a wooden spacer to avoid damaging the pan.
• 🛠️ Crowbar or crowbar: for carefully moving the engine when removing the old cushion.
• 🧴 Penetrating lubricant (WD-40 or equivalent): The pillow mounting bolts often rust, especially in the lower part.
• 🔦 Flashlight: Access to the rear cushion is limited, so good lighting is a must.

Before starting work, complete the following preparatory steps:

Remove the terminal from the battery|Disconnect the throttle position sensor (if necessary)|Drain the oil (if you plan to replace the crankshaft seal)|Secure the car with the handbrake and chock the wheels-->

If on your Almera Classic If an air conditioner is installed, you will have to first remove the compressor drive belt. To do this, loosen the tension roller (12 mm wrench) and remove the belt. Do not disconnect the air conditioner lines - this can lead to freon leakage.

⚠️ Attention: On cars with automatic transmission, before lifting the engine with a jack, be sure to remove the transmission pan protection. Otherwise, there is a risk of damaging it or deforming the pallet.

Step-by-step instructions for replacing the rear cushion

The process of replacing the rear airbag Nissan Almera Classic can be divided into several stages. The main rule is to take your time and make sure that the engine does not rest on pipes or wires. Here are the detailed instructions:

1. Lifting the car. Place the machine on a viewing hole or lift it on a lift. Secure the rear wheels with chocks.
2. Dismantling the protection. Remove the crankcase guard (if equipped) and the plastic splash guard under the engine. This will give access to the rear cushion.
3. Lifting the engine. Place a jack under the engine sump (be sure to use a wooden spacer!) and lift the engine slightly to remove the load from the sump. Don't raise it too high - 1-2 cm is enough.
4. Unscrewing the fasteners. First unscrew the upper bolt of the pillow (14 mm wrench), then the lower bolts (17 mm wrench). Bottom bolts often stick, so pre-treat them with penetrating lubricant.
5. Removing the old pillow. Carefully remove the old support. If it is stuck to the bracket, use a pry bar, but do not use excessive force to avoid bending the fasteners.
6. Installing a new pillow. Before installing a new cushion, clean the seat from dirt and rust. Reinstall the support and tighten the bolts in reverse order. Do not overtighten the boltsuntil the engine is lowered into place.
7. Lowering the engine. Slowly lower the jack and make sure the cushion is seated correctly. After this, finally tighten all bolts with a force of 40–50 Nm.

On vehicles with an engine GA16DE It may be necessary to additionally remove the airbag mounting bracket (it interferes with dismantling). In this case, unscrew the two bolts securing the bracket to the cylinder block (19 mm wrench) and remove it together with the cushion.

What to do if the bolts do not come off?

If the airbag mounting bolts do not budge, try the following:

1. Treat them with penetrating lubricant and wait 10-15 minutes.

2. Use an impact wrench or socket wrench with extension to increase leverage.

3. As a last resort, you can gently heat the bolt with a gas torch (but do not overheat, so as not to damage the rubber of the new cushion).

If the bolt breaks, it will have to be drilled out and a new thread cut.

Common mistakes and how to avoid them

Even experienced car owners, when replacing the rear airbag with Nissan Almera Classic make mistakes that can lead to repeated repairs or damage to other components. Here are the most common mistakes:

• 🔧 Incorrect bolt tightening. If you tighten the mounting mountings while the engine is suspended, after lowering the engine the support will be under constant load, which will shorten its service life. Always tighten bolts only after the engine is lowered into place.
• 🚗 Ignoring alignment check. After replacing the cushion, check whether the engine is displaced relative to the gearbox. If the gaps between the engine and the engine compartment have become asymmetrical, the airbag may be installed incorrectly or the bracket may be deformed.
• 💥 Damage to pipes or wiring. When lifting the engine with a jack, it is easy to snag the cooling system pipes or wiring harnesses. Always check that nothing is tight or pinched.
• 🔨 Using a faulty jack. If the jack begins to "sag" during operation, the engine may drop sharply, damaging the new mount or other components. Use only serviceable tools and secure the lift with additional supports.

Another common mistake is failure to check the condition of adjacent supports. If the rear mount is worn out, there is a good chance that the front mounts (especially the right one) also need to be replaced. Neglecting this will result in the load on the new rear cushion being distributed unevenly, and it will last much less.

How long will a new pillow last: tips for extending its service life

Rear engine mount service life Nissan Almera Classic depends on several factors: quality of the part, operating conditions and driving style. On average, the original airbag lasts 80–120 thousand km, while analogues last 50–80 thousand km. However, there are ways to extend its life:

• 🛣️ Avoid sudden starts and braking. Sharp jerks create shock loads on the support, which accelerates rubber wear.
• 🚘 Check fastenings regularly. Once every 20-30 thousand km, inspect the mounting bolts of the airbag - they may weaken or rust.
• 🔧 Monitor the condition of the seals. Oil leaking from the rear crankshaft oil seal gets onto the rubber of the cushion and corrodes it. At the first sign of a leak, fix the problem.
• 🌡️ Monitor engine temperature. Overheating of the motor leads to “aging” of the rubber of the supports. Change antifreeze in a timely manner and monitor the operation of the cooling system.

If you frequently drive off-road or carry heavy loads, the rear cushion will wear out faster. In this case, it is recommended to install reinforced supports (for example, from Febi or Corteco marked "Heavy Duty"). They are more expensive, but can withstand increased loads.

It is also worth paying attention to pillow material. Some manufacturers (for example, Sasic) use softer rubber, which dampens vibrations better, but wears out faster. Original pillows Nissan have an optimal balance between rigidity and durability.

FAQ: Frequently asked questions about replacing the rear airbag on a Nissan Almera Classic

Is it possible to drive with a worn rear airbag?

In the short term, yes, but it is fraught with consequences. A worn-out cushion leads to increased vibrations, which are transmitted to the gearbox, pipes and electronics. In the long term, this can cause oil leaks, broken wiring, or even deformation of the subframe. If the cushion is completely destroyed, the engine may become dislodged and damage other components.

How long does it take to replace?

On average, the procedure takes 1.5–3 hours, depending on experience and the availability of an assistant. Most of the time is spent on unscrewing rusted bolts and raising the engine. If this is your first time doing this type of repair, allow 3-4 hours.

Is it necessary to do a wheel alignment after replacement?

No, replacing the rear engine mount does not affect the wheel alignment. However, if you removed the subframe or suspension arms during the repair, a wheel alignment may be required.

Is it possible to replace the cushion without a pit or lift?

Theoretically yes, but it is extremely inconvenient. Without an inspection pit or lift, you will have to work lying under the machine, which complicates access to the bolts and increases the risk of mistakes. If there is no alternative, use reliable supports and a jack with a low lift.

What other parts should be replaced along with the pillow?

It is recommended to check and replace if necessary:

• Front engine mounts (especially the right one).
• Rear crankshaft oil seal (if there are signs of oil leakage).
• Pillow mounting bolts (if they are rusty or deformed).
• Air conditioning compressor drive belt (if worn).