Ask LH: Should I Repair My Old Car Or Just Replace It?

Ask LH: Should I Repair My Old Car Or Just Replace It?

Dear Lifehacker, I love my car, but it’s getting on in years. It’s paid off, which is great, but even routine maintenance now runs me a few hundred bucks, and the mechanic is always upselling me on additional repairs that are hundreds more dollars. Is it time to just retire my ride and buy a new car, or should I stick it out for the long haul? Sincerely, Driven to the Brink

Pictures: Rob Stinnett/Flickr, goodmami/Flickr, Jerry Bunkers/Flickr, Zyada

Dear Driven to the Brink,

It can seem like a fine line between when your old, well-loved car is costing you more money than a new one would, but it’s not difficult to make the call here. Part of it is maths, and part of it is just taking a good look at your personal situation. In the end, both factors should determine whether a new (or new to you) car is in your future, or whether you should stick with your ride until the wheels fall off.

Do The Maths: How Much Are You Paying In Maintenance?

The picture gets a little murkier if your car isn’t completely paid off: if you’re still making car payments and you think that your maintenance costs are higher than another vehicle with a similar payment, you may be better off getting a new car, but you’ll lose any money you’ve already sunk into paying off your existing vehicle. It may fit into your budget, and you may save on some of the maintenance costs (since you’ll certainly incur new maintenance costs with a new car), but unless you feel like you’re spending so much on maintenance that your car is a lemon, you’re not going to save money by trading out for another ride.

If you’re looking to save some cash on regular maintenance, the best way is to start doing some of it yourself. Simple things you probably pay a dealer or a mechanic for, such as changing your oil, checking your fluids (and adding more when levels are low), changing spark plugs and replacing air filters are all things you can easily do yourself with a little research. Google your car’s make, model and year for information on how to do your own repairs. Odds are someone online has detailed instructions on how to do the work you need done, and some things — like changing oil or replacing an air filter — are so simple you’ll be surprised you’ve been paying someone else to do them for you.

More Maths: How Much Do You Pay In Repairs?

One of the worst tricks I’ve seen — and this is usually at car dealer service bays — is the “free 100-point inspection” that comes with your vehicle’s scheduled maintenance. It’s billed as a favour, but it’s really just an upsell opportunity for the service bay. They inspect your vehicle (that part’s fine) and then come to you with a laundry list of work they would like to do. We’ve shown you how to avoid getting ripped off like that before. Part of the reason you may be considering a new car over your current one is because you’re just paying too much for repairs or getting ripped off when you get maintenance done.

If the repairs are legitimate, however, here are some things to keep in mind:

  • Is the repair less than a few months’ car payment on a new vehicle? If the repair is less than a single month and your vehicle is paid off, it’s a no-brainer. If it’s less than a couple of months and you think that you’ll be able to go a few months without additional repairs or maintenance costs, it makes sense to go ahead and get the repairs done as well. Where you start running into trouble is when you have to chain expensive repairs every few months. For example, a $300/month car payment versus a $1200 repair every four months evens out pretty quickly. Again, you have to add regular maintenance into both scenarios, but it starts to make sense to get rid of a car that’s costing you that much every four months in costly repairs. Then again, if you have a car that’s setting you back that month every four months just in repairs, you probably already know you have a problem.
  • Is the repair less than half of the car’s market value? If the answer is yes, then you’re better off doing the repair. For more sporadic repairs or maintenance you may have neglected, if your mechanic quotes you $1500 on a vehicle that’s worth $4000, you’re probably still better off getting the work done. If you know your vehicle is only worth about $2000 however, it probably doesn’t make much sense unless you can spread those repairs out over a period of time that makes it worthwhile (and also increases the trade-in value of your used car). If you’re not sure of the market value of your car, check
  • Consider how long the repair will add to the life of your car. In the previous example, even a car that’s only worth $2000 can be worth getting a $1200 repair on if you know that the repair will extend the life of your vehicle longer than you would normally pay that $1200 off in new or used car payments. If you know the repair is something that’s only a once-in-a-while issue and will add a few years to the life of your car, it makes sense to get it done.

How Much Is Your Peace Of Mind Worth?

For example, you may get a warranty that will cover repairs for a year or so, and all you have to worry about is regular maintenance. You’ll ideally eliminate the back-and-forth to the mechanic that comes with high-mileage cars, and you’ll probably get a safer, more up-to-date, more fuel-efficient vehicle by getting something new. A newer vehicle will be more dependable than your older one — and depending on how old that older one really is, you won’t have to worry about it breaking down on you. Dependability and reliability are worth a lot, at least mentally and emotionally.

At the same time however, if you have a good, honest mechanic, and the repairs you elect to do add years of life to your current car, your current ride can be just as reliable and dependable as a new one. The average age of a car in Australia is 10 years now, and with the right care and maintenance, yours can easily last as long or longer. Plus, since yours is all paid off, there’s no reason you should be in a hurry to walk into a new or used car loan that will result in a monthly payment.

Consider Your Budget

RACQ has a great breakdown of both sides of this debate. One thing we’ll reiterate is don’t let a broken-down car make the decision for you. You should definitely try to make the call to get a newer vehicle before your old one gives out completely. Sure, a catastrophic breakdown or a total will make the decision for you, but you shouldn’t have to wait for that to happen to plan for the future.


Got your own question you want to put to Lifehacker? Send it using our contact tab on the right.


  • Might i suggest as well, if you think you will end up replacing your car in the next few years, now would be a good time to start saving up if you can to whether buy outright or at least reduce the amount you’ll need to borrow

  • Good timing, I’m just re visiting the question.

    At the start of 2012 the fiance’s Holden Astra had an air-con failure. Only 4 and a bit years old, but out of warranty. We got that fixed, original quote was $500-1k but managed to get it done for $350 in the end. We then paid the finance off at the end of 2012.

    Also late 2012 major service with timing belts etc, just short of $1200. It’s maintenance not a repair but still a major cost for a now 5 year old car. Started to think maybe we should trade this in on a 3 year old corolla before it develops any more problems as the Astra aren’t exactly known for being reliable.

    Roll around to this weekend and it starts shaking and goes into a low power mode. RACQ quick diagnosis is a cylinder misfire, and guessing that either the coil packs need replacing or the ECU is busted.

    Getting this fixed is still cheaper than scrapping it of course, but now the choice is still – is this the last problem we will have for a while or is it going to turn into a money pit. Can’t decide still.

    • I was recently in the same situation as you lutomes.
      I had to replace the timing belt as part of scheduled servicing, and the water pump was toast as well. Every now and then normal servicing has a few additional costs, regardless of new or old the vehicle might be, this is always occur.
      I can’t help with the Astra’s issue, but I also had the ECU die on me (’02 206). Expensive, but I think the cost was worth it. A car without a working engine will only fetch so much.
      It’s a hard decision to make though, what do you do after it’s fixed ?

    • You should get a decent amount of life after doing coil packs and a major service. Sounds like you already passed the sell point, selling now will have saved someone a ton of cash doing the service and coil packs.

      Unless you’re not using genuine GM parts in which case sell it ASAP or face repeating issues. Astra’s can go a long way with good regular servicing and genuine parts.

      • Astra’s can go a long way with good regular servicing and genuine parts.
        If that were true, shouldn’t they have lasted longer in the first place? I do agree that it could be past the selling point though.

  • It depends on what car you have .. I was debating a few months ago whether to get a new car or used…. buying new means losing too much money on depreciation . I bought a new Subaru years ago and lost $20K in over 4 years in depreciation. Its painful as you’re paying expensive servicing at the Dealer and losing that much on a new car. Getting a used car .. and nice used car, gives me the opportunity to mod it…. I ended up buying a used skyline and used the money to upgrade it slowly and it is exciting! If you happen to buy a classic car, you might ended up making some money.

  • Repair. I’ve a 25 year old LandCruiser that’s still going strong. It also gets more fuel efficient every year thanks to the rust making it lighter. One of these days I’ll get some oxy-acetylene bottles again and fix the worst bits.

  • Some cars are just more trouble than they are worth, particularly when a fault a) can’t be fixed the first time round, and b) is expensive. I had both problems consecutively with 2 x VW Golfs, and each time I put up with the repeated trips to the mechanic, and spiralling maintenance costs for a couple of years, and then bought another car. The 1st Golf was ex-demo, and the 2nd one new. I thought the 2nd Golf would not have the same type of problem, but after 6 years it developed steering problems which even VW couldn’t fix. You know when the manufacturer can’t fix the problem, that its time to get rid of the car.

    Now I have a 10 year old Lexus (bought it 6 years ago), and its the most reliable car I’ve ever had, and also the cheapest to run. Luxury at a bargain price. I’m never going to buy a new car again.

  • Best thing I ever did was giving up on cars altogetheir, admitatly I live and work and do 90+% of my socialising in the CBD and medical reasons made the decsion for me but it made me realise I was working for my car and not my car working for me.

  • Always good advice here. I’m becoming quite a LifeHacker fan and recycling good bits to my own member lists!
    One of the amazing attractions at the moment is the almost zero cost financing floating around and long, long warranties! VERRRY interesting…
    Of course, you still have to pay for the thing, but as always maths is king – and usually ignored. 🙂
    The killer is almost always the vanity thing. On that point alone we can sell ourselves almost anything. 🙂
    Two other key things to remember.
    A: If you buy 2nd hand, buy quality, vis, a top of the line model big-engined thing and fit autogas to it. (I’ve proved it magic!)
    1. They are better built.
    2. They are better maintained.
    3. Suffered horrendous price drops
    4. Are far more comfortable AND safer in these dangerous, traffic-jammed times.

    B: Must be a popular vehicle for parts and service availability.

Log in to comment on this story!