As the stock market in autokomisie or elsewhere's see first of all:
Suspension
first Suspend state and angle of each wheel. They stand straight with the exception of the front, but only when they are twisted. Both the W123, W124 and W201, with strong front wheel turning left or right przeginają on the outside of the upper part of the tire. Do not stand straight as it is usually for vehicles with front wheel drive. Unfolded stand upright. The rear suspension on the stick arms, rods, etc., is so constructed that the wheels are standing vertically, unless the car is loaded, the wheels tilt the upper part of the inside.
second It often happens that the car accident and the vehicle are not known. linearity. It should stand behind the car a few meters and both left and right to check whether the wheels are aligned and that the camber angle is the same.
Body
first When it comes to metalwork, and especially the fenders and doors, it is worth to stand in front or back of the car and look at the reflection of light in the aforementioned part of the distance of 1-2 m standing in front of the hood or trunk lid. Such as folds or unevenness on the door means szpachel, which was part of spanking or otherwise "improved." Worse, if it is replaced with a new, only the eye of an experienced painter can tell if something was painted or not.
second Very carefully draw attention to the rubber components. They are often covered with paint as a result of inaccurate preparation of the car for paint. Seals for shafts are the most common place where you can see traces of paint.
third Passing all parts of the body equal to the gap between the fender and hood and trunk lid, perfectly fitting door, so it should be noted. Inequality sunroof to the roof, can attest to his replacement, straightening or stretching.
4th When you open the bonnet look at the stringers, which Mercedes cars are easy to watch. Any suspicious or significant bending of paint chips, can attest to the fact that this element of the body worked, with the result that there was a chip of paint.
5. Let's see a door closing. The W123 is equal to the crash without significant resistance, in terms of TKE and the 190-W124 is a lightweight folding locks or not wrong to set a door leads to repeated attempts of the doors leading to a strong walnięciem. Former S-ka, or closes W126 as W123, but more effectively because of the weight of the door and a pin representing the guides, while protection against longitudinal displacement at the time of the accident.
Engine
making an inspection engine, depending on whether it will be turbo or diesel or petrol will have to pay attention to several things, namely: first
Turbodiesel achieved due to the much more powerful and much faster turnover of screwing up the faster it wears out, especially turbocharger, which, after about 150 thousand. km mileage may need replacing bearings, shafts on which is mounted a propeller-fan produces huge airflow. How can we check? After removing the hose, through which we see the turbine draws air w / Multi-vane propeller turbine or otherwise, which will protrude from the tip of the shaft. It is move the axis control left and right and see if there is no slack. If this is not good and can still be free to ride.
second It is worth a look, if this is possible for the collector, which receives air from the compressor. Located on the walls of the oil seal is poor lubrication of the turbocharger, and so some degree of wear. You can with this ride, but must take into account the possible increase in oil consumption. The same applies to the intercooler or charge air cooler. Oil on the walls of the hose through which air proves what I wrote above.
third In an ordinary diesel fuel, such as the popular 200 D located in the 190-ties, or 250D, 300 D W124, check oil pressure gauge after starting the engine. With a cold engine has to come necessarily an indication of the position - 3 However, when heated to around 90 degrees C, the indicator has the right to decline to the position - 2
WARNING! -many dishonest people processed as indicators that the tip is always in position - 3, which are hot it is virtually impossible. The indicator does not show if the pressure. It is connected to the voltage allowing him to remain in position all the time - 3 When you turn the key in the ignition of the light position, pay attention to the arrow pointer. If raised immediately before the ignition is someone, in short, makes us the "egg" and wants to deceive us.
4th The engine should easily catch fire after the first heating after a single candle, and turn the key without adding gas.
5th After heating up to normal operating temperature around 90 degrees C did not see if from under the cork blows white smoke oil. If you smoke, it indicates the engine przedmuchach what makes it not too good condition.
6th Engine at work may not be interrupted and must be screwed on turnover smoothly.
7th It is important to switch off the engine when cold to suck on (about 3-5min). This activity is characterized by the sudden dismissal of turnover to around 600-700 rpm.
8th Engine when heated to around 90 degrees after an acute "przygazowaniu" should not smoke. Naturally there are some standards, however, the mounds of the tube can not be too strong. Cairns may be a poor injector / pour oil spray instead of her / or combustion of motor oil. There will be a greater consumption of fuel, oil and poorer efficiency of the engine.
9th As for gasoline engines is especially 230 models have failed camshaft, which "tapped" in the case of buying a car with this engine, try it at the very beginning.
10th In "benzynowcach 'worth to listen to see if any of the valves are not" pats "that is frayed. They have a rule engine with a higher order of 200-300 thousand mileage. km. This is demonstrated by "chirping" at the top of the engine, the valves under the hood.
11th Interrupt when giving gas, it may be wrong about the injection pump, fuel injection control system or damage a computer. It is often difficult to remove because of the lack of instruments to diagnose the engine, and a visit to the site leave us with empty pockets. However, if we drive a Mercedes as a new visit to the site may prove to be quite necessary, since tinkering on their own to do anything we will not lead, in many cases expose an additional cost.
Chassis
first If possible look through the bottom of the note the car the engine and the gearbox. It is mostly plastic. Covers all elements of platform and engine, that there is no more dirt and moisture as well as to damage by, for example odpryskujący of the stone circles.
second If we have a possibility of the above it should look at the cover leaks in the engine, gearbox and differential (photo). Mostly it is a small oil leak, it is typical mercedesowska fault, but it is very important. It is important to check whether the oil spill did not cause a reduction of its level.
third Oil Leaks can also occur in the shock absorbers. It manifests itself in dirt outside of the damper. If, however, will be present in older copies if there is too much to be surprised, because it is simply a consumption resulting from the operation of the car.
Interior
making an inspection inside the car did not sugerujmy purity. Let us turn more attention to the use of external parts. And so: first
Worn on the smooth steering wheel in the Mercedes is the order of 200-300 course of one thousand kilometers, as in the case of the gear lever and rubber caps on the clutch and brake pedals.
second Inequality in the level of digits on the odometer km course is usually a sign that someone had "perfected"
third Faded sign on a complex lever indicator and wipers are also a sign of great progress. In the case of W123, W116 and similar rocznikowo, such elements are less important, since these cars have driven many-hundred and one thousand kilometers should rather look at the technical level.
4th Where are the seat covers on the seats is worth checking what is the status of the original seat upholstery. They are often powycierane or Rend and elegant fur coat or a nice bag it effectively masks the fifth
Let's see all the switches, especially those from the blower, electric windows (or work).
6th See if windows are open to the end, in the case of glass el. whether the window is closing steadily. Heavy closing the windows at the top of the door is usually caused by the window frame curve, which was pushing it to improve its dolegania to the body, which may suggest that body in this place is crooked and it was stretched or straightened.
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