Cars With Fares does not accept timing-chain, internal-engine, head-gasket or lifter/camshaft repairs as a mobile service. This guide explains the failure and workshop repair considerations. Ask a suitably equipped repair shop to confirm the diagnosis, scope and written estimate. An enquiry does not book this repair or guarantee a referral appointment.
Your engine is a BMW N20, or the California-emissions version, the N26, the 2.0L turbo four BMW built from roughly 2012 to 2017. It's under the hood of the 320i, 328i, 428i, 528i, the X1 xDrive28i, the X3 xDrive28i, and the Z4 sDrive28i. Good engine, strong, makes real power. It has one well-known weak spot, and you found it.
A rattle on cold start. You fire it up in the morning, and for a second or two there's a noise like a handful of bolts in a tin can up front, then it clears as oil pressure builds and quiets the chain. On a January morning in Mississauga when it's been sitting outside at -15, that rattle is at its loudest and longest, because cold oil is thick and slow to reach the tensioner. A lot of owners write it off as "just a cold-engine sound." It isn't.
The other tells, as it gets worse:
Describe the noise, your BMW's year, and any codes, get a straight read on whether it's the N20 timing chain or something cheaper, free, right now.
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Dealer: typically $4,000–$9,000
That's the complete job, timing chain, both guides, the tensioner, and the valve cover gasket while the front of the engine is already open. One visit, parts and labour, no surprises after.
This isn't a quick brake pad swap. It's a multi-hour front-of-engine job, and the difference between a good one and a bad one is whether the guy doing it actually knows the N20 and uses the proper BMW timing tools to lock the cams and crank. Get that wrong and the engine's timing is off by a tooth, runs rough, throws codes, or worse.
The classic one is a rattle on cold start, a few seconds of chain slap when you first fire it up on a cold morning that quiets as oil pressure builds. As it worsens: a rough or shaky idle, a check engine light with P0016, P0017 or P0008, and a metallic noise that hangs around longer than it used to. Plenty of owners think it's the starter or just cold-engine noise. Nine times out of ten it's the guides.
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Five-star Google reviews, quoted in full.
“Fares did some major repairs on my GTI, including brakes, rear main seal and transmission fluid change. He is professional, capable and courteous. Despite the terrible weather he persevered, and got the job done. Very happy with his work.”Google review, five stars, August 2026
“Fares came by and did the brakes on my 2021 Lexus RX350. I got quoted way more at a shop so I decided to try a mobile mechanic instead. He showed up on time, did the work in my driveway, and everything went smoothly.”Google review, five stars, 2021 Lexus RX350
“Wonderful and quick experience, charged me way less than the dealer and he did the work in my driveway in the cold. I really appreciate all the hard work.”Google review, five stars
All reviews, and selected jobs written up with the real price paid.
5.0 on Google. Real jobs written up with the actual price paid, read them.
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