Powertrain mounting system on a vehicle Skoda Rapid with a 1.6-liter engine plays a critical role in ride comfort and durability of transmission components. These elements, popularly called cushions, dampen vibrations that occur during engine operation and prevent shock from being transmitted to the body. If one of the supports fails, the driver begins to feel increased shaking, especially at idle or when changing gears.
Most owners are faced with the problem of wear of rubber-metal elements after a mileage of 80โ100 thousand kilometers. Ignoring the symptoms leads to the destruction of other engine mount elements, which can result in expensive repairs. In this article we will look at how to identify a fault, which parts to choose and how to properly replace it.
How to recognize faulty engine mounts
The first signal that engine mount requires replacement, vibration of the steering wheel and seats becomes noticeable. Often it occurs precisely during warm-up mode or at idle, when the engine is operating in the most unstable mode. If you feel the whole car โshakingโ more than usual, you should immediately carry out diagnostics.
The second characteristic sign is the appearance of sharp knocking noises when starting from a stop or sharp braking. This occurs because the worn element no longer holds the engine in a given position and it moves excessively. Impacts can be felt in the body, creating the feeling that the problem is in the suspension or chassis, although the reason lies precisely in the engine mount.
Visual inspection often reveals critical damage to the rubber part. Cracks, tears or complete absence of the damping layer render the support useless. Sometimes the rubber ruptures, and the metal part begins to rub against the body or other elements, which is accompanied by a metallic grinding sound.
- ๐ Vibration in the steering wheel and pedals when stopping at a traffic light.
- ๐ Sharp knocks in the engine compartment area when changing gears.
- ๐ Visible tears in the rubber or โextrusionโ of metal through the rubber.
Design and types of supports for Skoda Rapid 1.6
The 1.6 liter engine (CWVA or CFNA series) has three main supports, each of which performs its own function. The left support, located closer to the radiator, is hydraulic and takes on the main load during acceleration. The right support, located on the belt side of the attachment, is usually made of rubber and metal.
The lower support (gearbox mount) is attached to the gearbox housing and to the subframe. It is this that often fails first, as it absorbs all the torsional vibrations from the transmission. It is important to understand that replacing only one cushion can lead to accelerated wear of the others, since the load is redistributed unevenly.
For correct operation of the system, it is important to use original spare parts or high-quality analogues. Cheap replacements often have hard rubber that does not dampen vibration, or are quickly destroyed by oil and temperature changes. Choosing the right part number is the key to long service life of the new part.
- ๐ง Left support: hydraulic, dampens high-frequency vibrations.
- ๐ Right support: rubber metal, keeps the engine from rocking.
- ๐ฉ Lower support: attached to the gearbox, holds the power unit from below.
Original Parts and Analogues
When ordering spare parts for Skoda Rapid It is necessary to focus on the VIN code of the car, since depending on the year of release and the type of transmission (manual transmission or automatic transmission) different supports can be installed. However, there are generic items that are suitable for most 1.6 MPI models.
Original parts from the VAG concern are expensive, but provide maximum resource and comfort. If the budget is limited, you can consider proven analogues from such manufacturers as: Lemfรถrder, Sachs or Topran. It is important to avoid counterfeits and products of unknown brands, as their quality often leaves much to be desired.
Below is a table with the basic articles for the 1.6 engine. Please note that when replacing it is recommended to change all the supports at once or, at least, those that are paired with a faulty one.
| Support type | Original number (VAG) | Popular analogue | Note |
|---|---|---|---|
| Left (hydraulic) | 5Q0 199 261 B | Lemfรถrder 40123 01 | The main support, often flowing |
| Right (top) | 5Q0 199 262 B | Sachs 318 237 | Often changing pairs with the left |
| Lower (pillar of the checkpoint) | 5Q0 199 264 C | Topran 109 366 | It's heavily loaded when you touch it. |
| Mounting bolt | N 908 132 02 | - | Disposable, requires replacement |
โ ๏ธ Warning: Motor cushion mount bolts are disposable parts. When dismantled, they can deform, so it is highly recommended to buy new fasteners along with supports.
- Mechanics (manual transmission)
- Automatic (automatic transmission)
- Automatic (DSG)
- I don't know
Preparation for replacement and necessary tools
Before starting work, the car and workplace must be prepared. Lift the car on the lift or use reliable stands, as you will need access from the bottom and side. Be sure to remove the negative terminal from the battery to avoid short circuit when working with the wiring next to the engine.
You will need a standard set of tools: a rattle, heads on 13, 16, 18 and 21, extension cords and cardanas. To dismantle the supports, a spring remover or a powerful wooden jack is often required to lift the engine and take the load off the mounts. Do not forget about penetrating lubricant, as bolts are often attached to the body.
If you are planning to change the left hydraulic support, note that it can be heavy and uncomfortable to install. It is best to have an assistant who will hold the engine while you twist the bolts. Lack of support can cause engine distortion and damage to the pipes or wiring.
- ๐ A set of heads and gates (required extension cords).
- ๐ Sub-dominant or hydraulic jack with board.
- ๐ง Penetrating lubricant (WD-40 or analogues).
โ๏ธ Preparation for cushion replacement
Step-by-step instructions for replacing supports
Replacement begins with the removal of the right upper cushion. To do this, you need to unscrew the bolts of the attachment to the body and to the engine. If the bolts do not unscrew, use penetrating lubricant and give it time to act. Carefully remove the old support, trying not to damage the surrounding hoses and wires.
The next step is to replace the lower support. Here it is important to properly support the engine with a jack. Install a jack under the pallet of the crankcase, putting a wooden board on top so as not to damage the aluminum. Slightly lift the engine to take the load off the bolts of the lower cushion, and unscrew them. After that, the support is freely removed.
The most difficult is usually to replace the left hydraulic support. It's attached to the subframe and the engine. Often it is necessary to first unscrew the bolts of the subframe attachment or loosen them to make room for maneuver. Set a new support, tighten the bolts from the hand, then lower the engine and finally tighten the mounts with the required effort.
โ ๏ธ Warning: Never tighten the bolts of the supports until the engine is lowered into its seats and takes up the working position. Otherwise, the rubber will be constantly in a strained state and quickly collapse.
What if the bolt is stuck?
If the bolt is not amenable, use heating (burner) or special compositions. Sometimes you have to cut the bolt with a Bulgarian and drill it, but this is an extreme measure that requires accuracy so as not to damage the thread in the engine body.
Before unscrewing the bolts, mark their position with a marker or take a photo. This will help to assemble the assembly correctly if the design has specific labels or uneven gaps.
Installation nuances and performance checks
After installing new pillows, it is necessary to check the correctness of their landing. The engine should be flat, without distortion. All bolts should be tightened with the recommended torque, which is usually 60โ80 Nm for supports, but the exact values are better clarified in the service documentation for your specific modification. Skoda Rapid.
It is important to check whether the hoses and wires are not affected by the new attachment elements. Sometimes after replacing the supports, the engine can slightly shift relative to its standard position, which can lead to friction against the body or suspension elements. Look at all the nodes from all sides.
Start the engine and let it warm up. Listen carefully to the work of the motor at idle speeds. Vibration should be absent or minimal. Try to sharply press the gas and release it - there should be no knocks and blows. If everything is in order, we can conduct a trial trip.
Do not forget to check the level of oil in the engine and the absence of leaks, as when lifting the engine, the pipes could shift. Proper tightening of the bolts of the supports is critically important to prevent the destruction of the subframe and the body of the gearbox during further operation.
The correct sequence of tightening of bolts and preliminary support of the engine with a jack are the main conditions for the durability of new supports.
Cost of work and common mistakes
The cost of replacing engine airbags in the service varies from 3000 to 6000 rubles per work, depending on the region and the complexity of access. If you do it yourself, the savings will be about 5000-8000 rubles. However, the complexity of the work should not be underestimated, especially when replacing the left support, where the subframe is dismantled or significantly weakened.
One of the most common mistakes is to replace only one pillow with obvious wear and tear of the rest. This leads to the fact that the new part quickly fails due to uneven load. Another mistake is the use of old bolts, which may not provide proper tightening and lead to the detachment of the support.
It is also worth considering that after replacing the supports, the nature of the engine can change: vibration will disappear, but noise from the exhaust system may appear if it was stretched by a worn support. In such cases, it may be necessary to adjust the position of the silencer or replace its anchorages.
- ๐ฐ Savings on self-replacement: up to 8000 rubles.
- โฑ Working hours: 2 to 4 hours depending on experience.
- ๐ Risk of error: improper tightening or distortion of the engine.
What symptoms indicate a malfunction of the left pillow?
The left hydraulic support most often fails at sharp starts. Symptoms: strong vibration during acceleration, knocking when changing gears and visual leakage of fluid from the support body.
Can I drive with a single faulty pillow?
Technically possible, but not recommended. This will lead to increased loads on other supports, transmission and body elements, which will eventually cost more than a timely replacement.
Do I need to change the bolts when replacing the pillows?
Yes, the bolts of the support mounting are disposable parts. Their reuse is unacceptable, as they can not withstand the loads and come off.
How often should I change the engine?
The recommended replacement interval is every 80,000 to 100,000 kilometers, but it is better to check their condition at every maintenance, especially if the car is operated in severe conditions.