What surprises to expect from the "cube": Mercedes Gelandwagen's shortcomings (W161-163) with mileage. Part 1
Mercedes Gelendwagen - premium German SUV G-class, which is produced by the Austrian company Magna Steyr and is sold under the trademark Mercedes-Benz. For 37 years of assembly, the appearance of this car has not changed much and is today considered a classic - doors with external hinges, iron buttons on the handles and always recognizable chopped silhouette. This brutal design attracts and repels at the same time. Recently, this car has turned into a real "Rolls-Royce" among all-terrain vehicles and with each upgrade it becomes only more expensive. Many fans of the model do not have enough money to buy a new "Helika", so they are forced to look for more affordable options in the secondary market. But how justified will be the purchase of such a car and with what problems to be faced during the operation of the second-hand Mercedes Gelendvagen, now and try to figure it out.
Weaknesses Mercedes Gelendwagen (W461-463) with a runThe paintwork is rather weak (especially on cars of recent years). Because of this, the paint in front of the car, wheel arches and thresholds quickly sand and requires constant updating. Many owners, in order to reduce costs, rushed to glue the body with a protective film. Despite the fact that the car has smooth body lines, it turned out that "Helik" is one of the most complex machines for film pasting, so the cost of such work is quite high. With increasing age there are many questions and to the corrosion resistance of the body. The weakest point is the door hinges - they begin to corrode after 5-6 years of operation. In the first years of life auto on the outer hinges paint, and rust stains may also appear. On machines older than 5-8 years, significant traces of rust can be found on welded seams, the windshield frame, thresholds, trunk doors and roof gutters. On the auto of the first years of production, the body mounts, shock absorbers, rear spring springs rot and fall off without proper care from the frame. You can find rust in the area of the rear optics, and in the absence of a heat-insulating screen of the muffler and on the floor of the body. The development of corrosion under a layer of paint and varnish is considered to be quite common, and bloated areas of paint are known to have such a problem. If the problem is not solved for a long time, it can be that steel in this place rotten through. Also, the exhaust system and metal straps for securing the fuel tank are prone to corrosion. The five-door versions of the machines have a high probability of cracking the sealant at the joints at the rear, while the three-door versions and the convertible are devoid of this problem. Particular attention is required and the Vin-number of the body. The fact is that it is located on the frame in the area of the arch of the front wheel, and is exposed to moisture, dirt and reagents. Rama is another weak point of this car, if it is not monitored for its condition, then it can corrode to a state where operation is already contra-indicated. Often, headaches are added to the owners of moldings and door seals - they become unstuck. Windshield, the owners are often called the consumables, as with frequent trips on the highway it has to be changed every 30-50 thousand km, and, here the reason is not in the quality of the glass, but in its unfortunate location. Another of the chronic sores can be noted the wear of the windscreen wiper blades and the sinking mechanism of the hatch. For machines equipped with a hatch, it is necessary to clean the drains, otherwise the hatch may start to leak. Over time, I begin to close badly the doors, and the windows of the side windows start to rattle, especially in the semi-open state.PowertrainsThe Mercedes Gelendwagen motor range was assembled from the best engines of the Mercedes-Benz concern. Depending on the volume of the power unit, the car was assigned the corresponding index:
The weakest atmospheric power units M102 have a volume of 2.0 and 2.3 are not found often - they were installed on cars produced in the early 90's. Of the common ailments of these motors, one can note a small resource of the camshaft and chain timing - 100-150 thousand km, "zhor" oil - appears as a result of wear and tear-off caps, quickly fail engine support. To date, most such powertrains have been overhauled, the only question is how it was quality and what details were applied. Buying Gelendvagen with the power unit M102 you need to be prepared for everything, and in case of serious damage it is better to buy a more recent engine, since it is not known how the engine was operated and serviced and how many non-original spare parts there had time to put there. On more recent machines, M103 engines 3.0 liters, the design is very similar to the engine series M102, but has a larger number of cylinders. The common drawbacks of these power units include: the unstable operation of the engine - occurs as a result of clogging fuel injectors. The poor quality of the U-shaped lining of the engine's front cover - eventually begins to flow. Like the older engine, every 100-150 thousand km, you have to change the oil-removal caps. If this is not done, the expense of a cheap branded oil will unpleasantly surprise you. The timing chain begins to stretch closer to 150000 km, simultaneously accelerating the wear of the tensioner and sprockets. Given the age of the power unit, you can safely say that during the operation there will be other breakdowns associated with natural wear and tear. Both engines with proper maintenance, without serious problems, care for more than 500,000 km. In 1994, the M103 gave way to the M104 engine. This power unit has become more reliable, but not ideal. The main problem with these engines is the leakage of the cylinder head gasket and the oil filter heat exchanger housing. Also, we can note the propensity of the motor to overheat. The main source of the problem is the poor condition of the cooling radiator and viscous coupling, the resource of which rarely exceeds 100 thousand km. As a result, the engine overheats, as a rule, the cylinder head. When using non-original engine oil, the chance of clogging the oil injectors increases, which leads to scoring in the cylinders and a more noisy engine operation. From time to time, it is necessary to check the condition of the wiring harnesses under the hood - eventually it will crack and may close together. Very often this leads to the failure of the engine control unit. With proper maintenance, the engine does not require serious interventions up to 400-600 thousand km. In 1998, this motor was replaced by a more complex power unit of the M112 series. As with older power packs, an increased consumption of oil is common. There can be two reasons: contamination with carbon deposits of crankcase ventilation and wear of oil removable caps. Often the owners note the appearance of oil leaks through the seal of the oil heat exchanger. When using low-quality gasoline, you should not rely on long-term operation of injectors (60-80 thousand km). The problem is manifested by a drop in power. The motor resource of this unit is about 300,000 km. A similar disadvantage and resource is provided by the engine with a volume of 5 liters V8 M113. In place of the M113 in 2007 came the more powerful 5.5-liter M273 engine, which is considered the most unfortunate - the metal-ceramic sprockets of the balancing shaft wear quickly, often there are problems with the exhaust manifold flaps, exhaust manifold plugs flow. For more details about the shortcomings of this power unit, I wrote in this article.For the "charged" versions of the car (AMG) the engines of the series M113, M137, M157 and M275 were used. The power unit M137 was not very reliable, because of this it was installed for a short time - from 2002 to 2003. Most failures occur in the ignition and control systems of unbalanced operation of the cylinders, as well as in the deactivation system of the left-hand cylinder bank ZAS. Another common ailments include current heat exchangers, weak threads in the holes for the cylinder head bolts. More modern motors M157 and M257 are also not problem-free, and considering who and how they ride, the problems with them can be very serious and expensive. But, if you have money to buy and maintain a 550-strong car, then on this occasion you should not worry much, because in case of any trouble, repair you can pull.
The old atmospheres OM602-603 are not only simple and reliable, but also have an impressive resource - about 1,000,000 km of run. But they also have a weak point - the engines are prone to overheating. Therefore, you should carefully monitor the engine temperature level and the condition of the radiator, nozzles and liquid in the cooling system, so as not to overheat the motor. If this trouble happens, in most cases you have to change the cylinder head. Not less successful is the 177 strong three-liter motor (OM606). The first serious problems with it, as a rule, appear after 400000 km of run. The most common ailment of this engine is the wear of the connecting rods (400-500 thousand km running). From minor troubles, we can note the failures in the operation of the relay unit K40 - the problem is solved by the soldering of the unit. The main disadvantage is that the temperature sensor in this motor is unsuccessful, because of this, drivers often find out late that the engine temperature is at a critical level - high probability of overheating with all the ensuing consequences. For the restoration of the power unit mechanics will ask you for a minimum of 1800 bucks for the replacement of cylinder head. More modern power units with a CDI prefix in the name, equipped with fuel equipment with the Common Rail injection system, are not only sensitive to the quality of diesel fuel, but also require large costs for repairs and maintenance. Owners of cars with the OM612 engine often encounter a failure of the dampers in the intake manifold and fuel pump, and on some instances there were problems with the cylinder head. In the most common three-liter OM642 engine (since 2006, the only diesel engine in the line) to 200,000 km, it may be necessary to replace the injectors and chain Timing belt with tensioner. But the biggest trouble is the destruction of the intake manifold. When destroyed, the parts of the collector get into the turbine, damaging its blades, shaft, as well as the mechanism for changing the geometry. If you monitor the condition of the reservoir, the turbine will serve a minimum of 200-250 thousand km. If you want to avoid unforeseen expensive repairs, you need to change the glow plugs in a timely manner, the fact is that in a non-operating condition they quickly become attached and unscrew themtheThis way is not always possible - removal of the cylinder head is required to drill out the burnt candle. If there is abnormal noise and vibrations during engine operation, first of all pay attention to the condition of the crankshaft pulley clutch. The most powerful 4.0 CDI engine (OM628) has serious design errors with fuel equipment, which entail permanent, expensive repairs, as well as substantial accelerate the wear of the piston group, and the heads of the blocks. Most often, the fuel equipment - piezo injectors and fuel pump - is bothering. The timing chain, as a rule, begins to stretch closer to 200-250 thousand km, often at the same run requires the replacement of the turbine. Solving any of these ailments will not require small investments. It is worthwhile to understand that most of the Mercedes Gelendwagen power units have already been affected by the time, therefore it is necessary to be ready for the failure of the control units, relays and all kinds of sensors from the first days of the purchase of the second-hand Helik. On cars older than 10 years, wiring withers from old age, outboard equipment breaks down, air sucks appear. Mercedes Gelendvagen installed a large number of gearboxes, the all-wheel drive system with three differentials, and its legendary "neubivaemaya" suspension requires special maintenance. That's all this and will be discussed in the second part my article. If you are the owner of this model of the car, please describe the problems that you had to face during the operation of the car. Perhaps, it is your feedback that will help readers of our site when choosing a car.
Yours faithfully, edition
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