AtWhatMileage
Engine · 10 owner reports

Misfire or rough idle on the 2014 Volkswagen Jetta

Only 7 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.

Reports of this failure 10
With an odometer reading 7
Reports per 1,000 built 1.1 per 1,000
Filed below 36,000 miles 14%
Mention a crash, fire or injury 0
Typical repair $250–$1,600
What it means when it happens Moderate
Rank among this year's problems 16th

When misfire or rough idle gets reported

There are 10 reports of misfire or rough idle on the 2014 Volkswagen Jetta, 7 with a mileage attached. That is too few to place the failure on the odometer with any confidence.

A part like this is normally expected to survive 92,000 miles. It is the 16th most-reported problem on this model year.

The whole distribution

Percentiles of the 7 odometer readings owners gave.
10th25thMedian 75th90th
— — 74,000 miles — —

Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.

What a percentile can and cannot tell you here

These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.

What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.

Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.

What happens, and what it costs

Putting it right typically runs $250–$1,600 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.

The same failure on other years

The same failure is reported on 18 model years of this car. It shows up earliest on the 1998, at a median of 1 miles, and latest on the 2009 at 210,000 miles.

By volume the 2001 carries the most reports, with 65; the 2014 has 10. A mode that appears across most years of a model is usually a design choice rather than a bad batch.

If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.

What owners wrote

Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.

I was driving my 2014 jetta se (14 months ago 13658 miles on the car) on november 25, 2015, when it completely stopped on highway 101 in california at 4 pm on the day before thanksgiving. I was at a complete stop when the engine turned off. I turned off my car and restarted it and the engine was shaking badly (from side to side) and the more I drove the car the more lights started turning on. I was stuck in major holiday traffic and almost got hit on numerous occasions and got honked at multiple times because I was unable to keep up in traffic due to the violent shaking of the vehicle. Going above 25 miles an hour caused the car to make a loud noise and shake even more vigorously, making it impossible and dangerous to drive. The first lights to turn on included the epc, oil light (engine low oil) and engine (emission control light). However, as I drove the car more, to pull over to safety because I was unable to pull over at the current place I broke down, the more lights started to turn on such as the tire pressure system. I had to be towed to the nearest dealer who said 3 of my 4 ignition coils were misfiring. I got the car back…

13,658 miles NHTSA complaint 1243301 filed 2015-12-06

Tl* the contact owns a 2014 volkswagen jetta. While driving approximately 40 MPH, the vehicle stalled without warning. The vehicle was able to restart. The vehicle was towed to south bay volkswagen (3131 national city blvd, national city, ca 91950) where it was diagnosed that the ignition coil and steering lock needed to be replaced. The failure recurred twice. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 52,879.

52,879 miles NHTSA complaint 1411833 filed 2017-10-02

Multiple ignition coils failed. This happened while in motion. Wife stranded on busy freeway. Failing is bad enough. They are made primarily of rubber and are melted to the spark plug and cannot be removed by normal means.

50,000 miles NHTSA complaint 1431011 filed 2017-12-07

Also reported on the 2014 Volkswagen Jetta

Other engine problem

55 reports median 40k

Other electrical problem

55 reports median 56k

Other powertrain problem

41 reports median 55k

Other fuel system problem

20 reports median 68k

How far this goes

This page is kept out of search results because 10 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.

Complaints are voluntary, so 10 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.

Questions this page answers

At what mileage does misfire or rough idle happen on the 2014 Volkswagen Jetta?

Across 7 owner reports that included an odometer reading, half were filed by 75,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.

How common is misfire or rough idle on the 2014 Volkswagen Jetta?

10 reports have been filed with NHTSA, about 1.1 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.

What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars

Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed