1.9 TDI engine
1.9 TDI engine
Although considered to be 1.9 TDI The motor is durable and reliable, it is worth knowing what to expect symptoms and breakdowns.
Engine 1.9 is considered to be the most reliable TDI with 90 hp with Bosch pump. This is because of the very simple structure. However, even in it there are some elements that can cause problems. These are mainly turbines, EGR valves, flowmeters and injectors, and vacuum hoses should also be observed.
In newer versions 1.9 TDI engine appeared solutions that expanded the list. There is a variable geometry turbine, flywheel, nozzles, soot particle filter, alternator and some additional sensors.
The most serious omission 1.9 TDI of the engine is no doubt firing a gear belt. The culprit is often the failure to comply with the timing belt replacement.
Most of these failures are inevitable over time.
The reasons for the loss of power can be different. One of the first things to pay attention to is to check the tightness of the suction system. A particularly negative impact on the performance of a car with a 1.9 TDI engine can occur due to air leaks on the hoses between the turbine and the intake manifold - for example in the area of the intercooler, mounted in almost all versions of the 1.9 TDI engine. The most common reason for a large drop in engine power is one of two elements - the EGR valve or flow meter.
In the case of a 1.9 TDI injector pump system, you must adhere strictly to the timing belt replacement interval. But what should I do if it already breaks? Then repair costs can quickly exceed the price of the engine in the secondary market. In the case of a 1.9 TDI engine timing belt failure, valve and piston collisions may occur, then damaged valves should be replaced. Unfortunately, piston damage can also occur, and in extreme cases, even breaking the engine block.
With the 1.9 TDI engine, the timing belt replacement intervals are substantially different and range from 60000 km to 120000 km, depending on the engine generation. When you buy a car with a 1.9 TDI engine, it is best to replace the timing belt immediately.
Typical symptoms of EGR valve failure are loss of power and exhaust smoke. EGR valve failure can be due to mechanical wear or deposition of large amounts of soot on the valve. With the 1.9 TDI engine, there are several versions of the EGR valve. Before deciding to replace the EGR valve, you must be sure that the reason is not a N75 valve defect.
The engine has no dynamics, increased fuel consumption, the engine is slow. The problem is with the damaged flowmeter. The ECU of the engine does not know how much air is entering the engine and is not able to properly control the engine. The flowmeter is often the first suspect in a case, such as a decrease in engine power. However, before deciding on a replacement, it is good to see if it is really the root cause of the problem.
Wear of hydraulic valves is indicated by noisy valves. The only cure is to replace it with a new one. This is best done when changing the timing belt, as you must unburden the engine when replacing the valve lift.
The car loses power, interrupts turbine operation uncontrollably. The N75 valve is responsible for regulating the pressure of the charge. When the dirty valve is N75, the turbine is no longer functioning properly. Solution: Sometimes disassembly of the valve helps to disassemble and clean the valve, or it must be replaced.
Turbine failure can be recognized by the increased consumption of engine oil in combination with exhaust smoke, and noise from the turbine is often heard, whistling is heard.
There are two types of turbine in the 1.9 TDI engine. The first is a fixed geometry turbine, it is simpler and easier to service. Another option is a variable geometry (VTG) turbine whose service is more complex.
VTG turbines can lose engine power due to the blades being stuck in the turbine geometry. The blades rotate to increase the pressure at lower RPMs and reduce the pressure at higher engine speeds. When it comes to failure of variable geometry blade control. To protect against the destruction of the turbine, the ECU of the car at overcharging pressure puts the engine into safe mode.
TDI engine with VTG turbine, should not be driven gently and at low revs, it should be regularly "expelled" on the road at higher speeds. If there is a failure of the control, jamming of the wings, the turbine should be removed and cleaned.
The VTG turbine in the 1.9 TDI engine does not work well due to damage to the vacuum control (solenoid valve or hose), which is responsible for changing the geometry of the turbine.
Tip Do not turn off the car immediately after a harsh ride, wait for the turbine to cool.
Nozzle malfunction is noted by giving stronger gas. In extreme cases, the car leaves a cloud of black smoke. With defective nozzles, combustion of the fuel in the cylinder is poor. In addition, there are problems with starting the engine, uneven engine performance, or lack of engine response. It's a sign that it's time for a service lift. After service, the nozzles should work just as well as the new ones.
In order for the elements of the injection system to be in good condition, it is recommended to always use quality fuels - savings in this area quickly prove to be expensive.
The engine is difficult to start when warm, it has to be long to rotate. The computer provides a small dose of fuel to start, need to reprogram the ECU of the engine, insert a new folder of engine operation.
The sharp sound during engine shutdown indicates the wear of the floating flywheel. Sometimes there is a metallic idle sound or a clutch shakes. the floating flywheel needs to be replaced and usually involves the need to replace the entire clutch set.
Overview - The 1.9 TDI engine can say a lot of good things: it's creative, very durable, can be dynamic and increases the value of cars sold. However, one should not assume that every car is based on that, diesel is a good investment. There are many cars on the secondary market when 1.9 TDI engines are difficult to exploit and require large investments.
Hi there, I am Mladen and I am an auto enthusiast. I started this blog years ago to help like minded people share information about latest cars, car servicing ideas, used car info, exotic cars, and auto technology. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. Ping us if you have anything cool to share on latest cars or on how to make older cars more efficient, or just want to say hi!
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I have a problem that the masters could not solve.pasat b5.5 131.only when I reach the intersection when I have to take the gas off it goes off again. It lights up without problems and so there are no rules. sometimes for days, nothing just goes down. repair the nozzles to replace the filters and stop there
crankshaft sensor
I have a problem on the turbo 1.9 tdi 77 kw, when adding gas the engine shakes and it has started to mix oil into oil now
The nozzles overflow, or the erasers themselves. A common problem with these engine encodings.
My friend's engine head is gone, it was like that on the Touran, like rubber bands on the nozzles, but when the master disassembled his head he had something to see, I made a complete cylinder head and replaced everything in it, not to mention everything now, only cam is used because the new one is not of good quality, I also replaced the tandem pump and now everything is as it should be. Greeting.
I guess your nozzles are bad for you and they inject fuel that can’t burn. It can also be a tandem pump.
i have a golf 5 1.9 tdi 77 kw i have no problem but i have some more noisy engine work i have replaced the flywheel so it is new under warranty but somehow i am noisy unlike before i stop at the traffic light unheard of for it to work and now the basvosjetjem master says it is great
when i start the car it works like three pistons, the radio reparation of the nozzle and again all the same problem continues. i go to the nipex saying that the problem on the engine head is below the fourth nozzle. true that on the fourth nozzle the parameter is 2,57 first nozzle in minus 1,56. XNUMX second and third vary. I do not know every master says something else
Poatovani. If you have serviced the nozzles then you have to adjust them. Also check the hydraulic lifters
I have an Audi a4 b5 2001 with a 1.9 85kw 116hp TDI engine. It shakes when moving, nothing is heard when it is switched off or on. I wanted to ask you if he has a floating flywheel and if so, is it up to him? And I noticed that it was leaking oil onto the egr valve.
The Skoda Octavia 2009 1.9tdi jerks and loses power and sometimes slows itself down and adds speed. What could it be?
I have the same problem and I am interested
Did you solve the problem? I have the same one now. Help!!! Respect Zeljko
It's your boom pump if you haven't solved it as soon as it jerks and loses gas it's your barefoot electronics on it
I almost have a shabby phobia 1.9 tdi 74kw in 2003. She started raising my oil level, no traction changes and doing the same as before. The master says the tandem is a cougar. So I'm wondering if his diagnosis is good and if anyone has a similar problem because it smells like valve nozzles to me.
I have a Skoda Octavia 1.9 DTI 2006 and I am curious about where the engine hums from, for example, turning off the throttle or completely letting go when driving from 40 to 50 km, that sound disappears as soon as I hit the clutch. gas and up to 35000 hpm. Greetings
I have saved 19 tdi on the rise loses power and after the right does not pull in and change all hoses eger valve is clean vacuum and replaceable and does not go
I have a Skoda Octavia 1.9 DTI 2006 and I am curious about where the engine hums from, for example, turning off the throttle or completely letting go when driving from 40 to 50 km, that sound disappears as soon as I hit the clutch. gas and up to 35000 hpm. Greetings
VW sharan 1,9 tdi, 85 kw, 115 PS has a problem that it will not exceed 120 km / h and in addition it loses gas from 120 to some 110, then from 110 to 100 km / h and then pulls again and the turbine is cleaned, change the sensors Maf, Map, n75, vacuum hose, suction cleaned .... another friend tells me to reprogram the ECU .... egr blocked ..., just not at higher speeds over 2500 rpm
golf 3 tdi 94 years old until warm up no power, big ler gas and flashing heater control lamp, does anyone have a solution