What causes a Mercedes Benz to have a p0170 code?

P0170 and P0173 Code Causes The most common cause of P0170 and P0173 on a Mercedes-Benz is a defective mass-airflow sensor. The MAF sensor gets dirty over time triggering the CEL and the two codes.

What does it mean when your air filter code is p0170?

Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. What does this mean? Dirty air filter, air filter housing or Mass Air Flow (MAF) sensor, or faulty MAF sensor are common causes for the P0170 code.

What does p0173 mean on a DTC code?

When the fuel trims reach their rich correction limit, the PCM (Powertrain Control Module) sets a P0173, indicating a problem or malfunction in the fuel trims. It may also have a P0170 referring to the same malfunction but on bank one. Symptoms of a P0173 DTC may include:

What is the OBD code for a Mercedes C300?

After an Oil change from Mr Lube Oil Change Shop I get a lighted amber indicator light and the OBD code are P0170 and P0173 on my 2008 Mercedes Benz C300. Any feedback will be much appreciated. Thanks Mike…

P0170 and P0173 Code Causes The most common cause of P0170 and P0173 on a Mercedes-Benz is a defective mass-airflow sensor. The MAF sensor gets dirty over time triggering the CEL and the two codes.

Where is p0171 Mercedes-Benz system too lean Bank 1?

P0171 MERCEDES-BENZ Description This fault code is stored in the Engine Control Module (ECM) when the ECM is no longer capable of controlling the air fuel ratio. For correct operation of the catalytic converter the ECM is required to keep the air fuel ratio (AFR) at approximately lambda 1, this equates to an AFR of 14.7:1 by mass.

Can a bad O2 sensor cause a p0170?

A bad O2 sensor could cause a P0170, or P0173. Repair cause of oil leak and replace oil-fouled O2 sensor. Please help me i have my 2000 montero sport xls and i have code p0125 and p0173 please help dont have idea about cars.

What is the Mercedes Benz check engine light code?

Mercedes Codes P0170 P0173. Mercedes-Benz owners may notice the check engine light plus P0170 and P0173 codes. In theory, these two codes mean that the fuel mixture is too rich or too lean.

What does it mean when your fuel trim code is p0170?

In writing this article I’ve added Mercedes-Benz-specific info since it seems that M-B (and VW) are most prone to having this P0170 surface along with misfire codes or other fuel trim codes. P0170 means there was a malfunction in the computer’s control of the air:fuel ratio.

Is there a P2006 code for a Mercedes Benz?

We are a few automotive enthusiast friends looking forward to sharing our adventures and passion. Please let us know what you would like to see!

A bad O2 sensor could cause a P0170, or P0173. Repair cause of oil leak and replace oil-fouled O2 sensor. Among several codes my car has, one is P0447 which is listed as EVAP emission system – vent control valve circuit open. No idea as to where to start checking as i am not sure if this car has a sensor in the fuel tank.

What causes an OBDII code on a Mercedes Benz?

P0130 MERCEDES-BENZ Possible Causes 1 Faulty Front Heated Oxygen Sensor Bank 1 2 Front Heated Oxygen Sensor Bank 1 harness is open or shorted 3 Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection 4 Inappropriate fuel pressure 5 Faulty fuel injectors 6 Intake air leaks may be faulty 7 Exhaust gas leaks

How much does it cost to diagnose a p0170 code?

The cost to diagnose the P0170 code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour. How much do you know about cars? When is the code detected?

What’s the p0173 fault code for a car?

It appears to me that the PCM (powertrain control module) logic used by some European car manufacturers to set a P0173 (or P0173) fault code simply isn’t used by American vehicle manufacturers. It is more common to see P0171, 0174, 0172, 0175 codes set with regard to fuel trim malfunctions on American cars.

Why do I have two Mercedes Fault codes?

In theory, these two codes mean that the fuel mixture is too rich or too lean. Most of the time these Mercedes-Benz fault codes are caused by a defective Mercedes Mass Air Flow Sensor (MAF) sensor. You can try cleaning the sensor but that doesn’t always work.

What does a p0170 mean on a PCM?

When the fuel trims reach their rich correction limit, the PCM (Powertrain Control Module) sets a P0170, indicating a problem or malfunction in the fuel trims. It may also have a P0173 referring to the same malfunction but on bank two. Symptoms of a P0170 DTC may include:

How much does it cost to repair a p0110 Mercedes Benz?

Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost of diagnosing the P0110 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Mercedes Codes P0170 P0173. Mercedes-Benz owners may notice the check engine light plus P0170 and P0173 codes. In theory, these two codes mean that the fuel mixture is too rich or too lean.

What are the Mercedes codes for C class?

This issue can affect any Mercedes-Benz model including C, E, S, ML, GL, CLK, GLK, SLK, GLE classes. Other codes that you may get are P0130, P0135. If you clear the P0170 and P0173 without fixing the underlying problem those two codes will return in a couple of days.

What are the OBDII Codes for a Mercedes?

OBDII Codes definition for car manufacturer Mercedes: B0001. B0002. B0003. B0004. B0005. B0010. B0011. B0012.

Can you read the fault code on a Mercedes Benz?

Can read fault codes from multiple systems such as transmission, engine, ETS, airbag and more. Can clear fault codes. Can read and erase all fault codes on Mercedes-Benz cars. Only works on MB but can perform further troubleshooting including SBC brake systems, convertible systems, Air Conditioner (A/C) system. 3. Mercedes-Benz Star Diagnostic DAS

When to use p0170 or p0173 fault codes?

It appears to me that the PCM (powertrain control module) logic used by some European car manufacturers to set a P0170 (or P0173) fault code simply isn’t used by American vehicle manufacturers. It is more common to see P0171, 0174, 0172, 0175 codes set with regard to fuel trim malfunctions on American cars.

Which is the best OBD code reader for Mercedes Benz?

Top 3 OBD-2 code readers for Mercedes-Benz have been listed under the green column below. 1. OBD II Code Reading Scanners – For ECU Only 2. BlueDriver Scan Tool for iPhone and Android

What does the Check Engine light on Mercedes mean?

Mercedes-Benz owners may notice the check engine light plus P0170 and P0173 codes. In theory, these two codes mean that the fuel mixture is too rich or too lean.

What to do if your oxygen sensor says p0170?

Common misdiagnosis includes bad Oxygen sensors or worn spark plugs. These items are unlikely to fix the P0170/P0173 codes. Always clean or replace the MAF sensor first. First, clean the Mass Air Flow (MAF) sensor. You will need MAF Sensor Cleaner to spray on the sensor.

Is there a recall on a Mercedes Benz fuel pump?

Defective fuel pressure regulator Leaking camshaft adjuster solenoids (Mercedes-Benz). NOTE: for some Mercedes-Benz models there is a service recall for a crankcase vent hose located under the intake manifold. It should be checked for leaks/cracking and also operation of check valve in the hose.

Is there a p0170 fuel trim misfire code?

This code is one that surfaces with certain makes of automobiles more than others. In writing this article I’ve added Mercedes-Benz-specific info since it seems that M-B (and VW) are most prone to having this P0170 surface along with misfire codes or other fuel trim codes.

What are the setting conditions for p0173 fuel trim malfunction?

It is more common to see P0171, 0174, 0172, 0175 codes set with regard to fuel trim malfunctions on American cars. There is very little information on the setting conditions for a P0173, or P0173, but what information that is available almost seems to be a redundancy of the P0171,4,2 & 5 setting conditions.

What does the p0170 code on a fuel trim mean?

What the P0170 code means. The P0170 code means that the powertrain control module is detecting a fuel trim that is outside the range of specification set by the vehicle’s manufacturer.

Is the Nissan p0170 fuel system too lean?

The Nissan code 0115 which converts to P0170 which is fuel system too lean, bank 2. The O2 sensor on that bank is very new because I got a code for that earlier. The car is running very rough and …

What happens if I save the p0170 code?

If this code exists for a long period of time in the powertrain control module, serious damage may result. If no symptoms are present while this code is stored, then the driver may be able to get by for a short period of time with this code saved. What repairs can fix the P0170 code?

The Nissan code 0115 which converts to P0170 which is fuel system too lean, bank 2. The O2 sensor on that bank is very new because I got a code for that earlier. The car is running very rough and

What is the O2 sensor on Nissan p0170?

Recently the car threw a code while I was out of town. The Nissan code 0115 which converts to P0170 which is fuel system too lean, bank 2. The O2 sensor on that bank is very new because I got a code for that earlier. The car is running very rough and …

Can a mechanic misdiagnose a Mercedes p0170?

If you troubleshoot this issue based on the two codes, a mechanic can misdiagnose the problem. In fact, these two codes are often misdiagnosed. Common misdiagnosis includes bad Oxygen sensors or worn spark plugs. These items are unlikely to fix the P0170/P0173 codes.

What does p0400 stand for in engine control module?

All our repairs are backed by our 12-month / 12,000-mile warranty. P0400 is an OBD-II generic code that the engine control module (ECM) detected the engine exhaust gas recirculation (EGR) valve is not flowing recirculated exhaust gases when it is commanded to open the flow of gases into the intake manifold.

What does the p0400 Mercedes Benz code mean?

EGR flow malfunction could be caused by a clogged EGR valve or EGR tube. Before replacing any parts try cleaning the EGR valve, tube and passages. The cost to diagnose the P0400 MERCEDES-BENZ code is 1.0 hour of labor.

What does the fuel trim code p0170 mean?

The code P0170 refers to a problem with the computer control of the air fuel mixture. This is called Fuel Trim. Code P0170 means that the Fuel Trim has reached its limit for compensating for a RICH Fuel Mixture. There are several reasons for a rich fuel mixture problem.

What are the symptoms of a p0170 DTC?

Symptoms of a P0170 DTC may include: Potential causes include a vacuum leak, unmetered air leaks Fuel saturated engine oil Leak in turbo air charge hoses (if equipped) Possibly bad O2 sensor (If Mercedes, may require adaptation with M-Benz compatible scan tool.) Oil contamination in MAF connector or O2 sensor connectors.

When is the P0300 Mercedes-Benz code detected?

The cost of diagnosing the P0300 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0300 MERCEDES-BENZ code detected? When a misfire occurs, engine speed will fluctuate.

How much does it cost to repair a P0300 Mercedes Benz?

The cost of diagnosing the P0300 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour. When is the P0300 MERCEDES-BENZ code detected?

Is the 1997 Mercedes Benz C Class A good car?

Edmunds’ expert review of the Used 1997 Mercedes-Benz C-Class provides the latest look at trim-level features and specs, performance, safety, and comfort. At Edmunds we drive every car we review, performing road tests and competitor comparisons to help you find your perfect car. Read the full in-depth review of the Used 1997 C-Class at Edmunds.

What does the O2 sensor code p0150 mean?

The ECM constantly monitors this voltage while in closed loop to determine how much fuel to inject. If the ECM determines that the O2 sensor voltage was too low (less than .4 Volts) for too long (for more than 20 seconds (time varies with model)), this code is set. The code P0150 refers to Bank 2.

What is the fault code on a Mercedes?

You press the gas pedal, and the engine RPMs go up to 4000 or even higher and you are limited to a max speed of about 30 MPH. The check engine light (CEL) comes on. You scan the car using an OBD-II code reader, and you get fault codes such as P0715, P0720, P0700.

How much does it cost to diagnose p0130 Mercedes-Benz code?

The cost of diagnosing the P0130 MERCEDES-BENZ code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. When is the P0130 MERCEDES-BENZ code detected?

What causes Mercedes Benz to run with p0170 and p0173?

If you clear the P0170 and P0173 without fixing the underlying problem those two codes will return in a couple of days. Under certain circumstances such as vacuum leaks, the car may run fine even if the CEL light is on and P0173/P0170 are present. The most common cause of P0170 and P0173 on a Mercedes-Benz is a defective mass-airflow sensor.

What are the diagnostic codes for Mercedes Benz?

Mercedes-Benz Diagnostic Trouble Codes (DTC) for 1996+ models Powertrain P0100 Mass or Volume Air Flow Circuit Malfunction P0101 Mass or Volume Air Flow Circuit Range/Performance Problem P0102 Mass or Volume Air Flow Circuit Low Input P0103 Mass or Volume Air Flow Circuit High Input P0104 Mass or Volume Air Flow Circuit Intermittent

How to check Mercedes Benz SLK 230 reading fault codes?

Before plugging the scan tool into the car’s diagnostic port, make sure that the car’s battery has at least 11.4 volts with the key off and that the battery cables are clean and secured to the terminals. Plug the scan tool into the data port and turn the ignition on. For other details, refer to the scan tool’s owner’s manual.

What are the Mercedes codes for vacuum leaks?

Other codes that you may get are P0130, P0135. If you clear the P0170 and P0173 without fixing the underlying problem those two codes will return in a couple of days. Under certain circumstances such as vacuum leaks, the car may run fine even if the CEL light is on and P0173/P0170 are present.

Can you erase a fault code on a Mercedes Benz?

Can clear fault codes. Can read and erase all fault codes on Mercedes-Benz cars. Only works on MB but can perform further troubleshooting including SBC brake systems, convertible systems, Air Conditioner (A/C) system. 3. Mercedes-Benz Star Diagnostic DAS This is diagnostic scanner used at Mercedes-Benz dealerships.

What causes a p0170 code on a MAF sensor?

Dirty air filter, air filter housing or Mass Air Flow (MAF) sensor, or faulty MAF sensor are common causes for the P0170 code.

Why do I keep getting Mercedes Fault codes?

Most of the time these Mercedes-Benz fault codes are caused by a defective Mercedes Mass Air Flow Sensor (MAF) sensor. You can try cleaning the sensor but that doesn’t always work. It is best to replace the sensor. If the codes remain it is possible you have a vacuum leak.

What does p0170 stand for in auto repair?

Dirty air filter, air filter housing or Mass Air Flow (MAF) sensor, or faulty MAF sensor are common causes for the P0170 code. The cost to diagnose the P0170 code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

Navigation